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Jinbing Teng, Kenkichi SATO
Article type: Article
Pages
495-496
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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In this investigation, a small special designed piezoelectric fretting wear testing apparatus, which contains two piezoelectric actuators to oscillate a flat specimen, was used. The apparatus can be set on a laser microscope stage directly. The in situ observation of fretting wear behavior in PMMA sphere-on-flat surface was conducted, and the real time change of the contact surface roughness was measured by using a profile micrometer laser microscope.
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Yasushi IMABAYASHI, Chu SAKAE, Masanobu KUBOTA, Yoshiyuki KONDO
Article type: Article
Pages
497-498
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Dynamic elastic-plastic finite element analysis was carried out in order to clarify what quantity controls the distribution of residual stress in a metal induced by the impingement of a shot. The impingement was modeled by a single rigid shot and a S45C flat target, whose elastic-plastic behavior was assumed to be isotropic and independent of strain rate. The numerical analysis revealed that the maximum contact pressure q0 determined by the Hertz theory of elastic contact dominates the generation of residual stress distribution in a metal target by a single shot.
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Yoshihiro YOSHIMURA, Jin Quan XU, Yukio MIYASHITA, Yoshiharu MUTOH
Article type: Article
Pages
499-500
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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In order to study rolling contact fatigue behavior of sintered alloy, FEM (Finite Element Method) analysis and rolling contact fatigue tests were carried out. Contact fatigue damage was observed as subsurface crack initiation and propagation. Subsurface crack growth behavior was evaluated by an interrupted test. Crack length increased with increasing number of cycles. Crack initiation and propagation in the subsurface of specimen induced a spalling mode of fracture. Stress distribution of subsurface was estimated by FEM analysis. The location of the maximum shear stress by FEM analysis coincided with the depth of crack initiation point observed in experiments. The position of the maximum shear stress approached to the specimen surface with increase in the tangential force at the contact surface. Subsurface crack growth behavior was dominated by shear stress amplitude.
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Ayako OHGUCHI, Eiji YUASA
Article type: Article
Pages
501-502
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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To produce magnesium alloy with ultra fine-grain size, powder mixtures, which aluminum powder was added to turning chips of AZ31 alloy with various contents, were mechanically alloyed for various milling times. Super-saturated solid solutions of the magnesium phase with crystalline size of nanometer scale are formed in the Mg-12mol%Al and 30mol%Al powder mixtures mechanically alloyed for 36ks, in the Mg-30mol%Al powder it forms the eutectic structure together with Mg_<17>Al_<12>. In the case of the Mg-40mol%Al and 61.5mol%Al powders, formation of the intermetallic compounds yields, and these crystals become to amorphous phase after the prolonged milling time. The harnesses of particles in the powder mechanically alloyed increase with forming of the super saturated solid solution or the intermetallic compound and their refining. The mechanically alloyed powder was extruded at various temperatures. The mechanical properties and structural change in the extruded magnesium alloy were investigated. Mechanical strength of the magnesium alloys made from the mechanically alloyed powder become higher than the alloy made from the AZ31 turning chips.
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Akira TERAYAMA, Hideki KYOGOKU, Shinichiro KOMATSU
Article type: Article
Pages
503-504
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Ti-Ni shape memory alloy (SMA) samples were fabricated by a spark-plasma sintering method using three types of powders prepared in different processes : the Ti&Ni powder mixture mechanical-alloyed for 360ks (MA no methanol), and Ti&Ni powder with a small amount of methanol mixture mechanical-alloyed for 360ks (MA with methanol), and Ti&Ni powder mixture V-blended for 3.6ks (V-blender). The fabricated alloy samples by the MA powder showed more uniform phase of TiNi than that by the V-blended powder. But, MA powder is slightly higher than the V-blended powder in carbon and oxygen content.
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Mitsuya HASHII, Akihiko HIRANA, Kazuo ISONISHI
Article type: Article
Pages
505-506
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Water atomized Fe powder, containing excessive oxygen, was mechanically alloyed (MA) with Al powder at the composition of Fe-40mol%Al. Al can act as a metallic reducing agent for iron oxide of water atomized Fe powder during PM process. In addition, reduced Fe powder was used to compare with the case of water atomized Fe powder. After long time milling, B2 type FeAl intermetallic phase forms along with elemental phases only by MA. Vacuum hot pressed compacts showed almost 100% FeAl intermetallic compound. Compact, made from the water atomized Fe powder, showed lower relative density (97.5%) and higher hardness compared to the case of reduced Fe powder and previously reported experimental data. This seems to be causes of the fine microstructure of the compact and effect of dispersed Al_2O_3 particle.
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Takakazu OKAMOTO, Keitaro HORIKAWA, Kenichi YOSHIDA, Kiyoshi SAKAMAKI, ...
Article type: Article
Pages
507-508
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Iron aluminides were fabricated from waste metals (Fe sludge and Al can tip) by powder metallurgical processes. Mechanical alloying and combustion synthesis were effective to form intermetallic compounds. Relationship between the microstructure and mechanical property was investigated. The synthesized specimens could be densified by mechanical alloying of Al can tip, the microstructures could be changed with powder mixture condition, however, the bending strength showed almost same value.
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Hideshi MIURA, Mitsuhiro MATSUDA, Kouichi YAMAGUCHI
Article type: Article
Pages
509-510
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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The pulse current pressure sintering technique is a kind of hot pressing and is hoped to be one of rapid sintering methods. In this sintering process, diffusivity of various elements may different from other sintering techniques because of lower sintering temperature and short sintering time, which may influence on the mechanical properties. In this study, The effect of microstructures on the mechanical properties of low alloy steel has been investigated by using the pulse current pressure sintering technique. The objected steel was Fe-2Ni-0.5Mo-0.4C (mass%) by mixed elemental powders, which showed a fine mezzo-heterogeneous microstructure. However, diffusion of Ni element was not enough for high strengthening because of short sintering time. Therefore, heat treatment after sintering was performed to optimize the microstructure for ultra-high strengthening the steel.
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Takeshi Kadomura, Masakazu Yokota, Hideki Kyogoku, Shinichiro Komatsu, ...
Article type: Article
Pages
511-512
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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This paper aims to find the influence of Cu addition (replacing Ni fraction) up to 14% on mechanical properties and material properties of Ti-Ni shape memory alloy fabricated by spark-plasma sintering method. The properties examined here are microstructure, the thermo-mechanical properties, the cyclic deformation characteristics and others. In the case of no Cu addition the solution-treatment results in decreasing in relative density, but in the case of Cu addition for more than 8% the treatment results in no decreasing in the relative density. Increasing in adding amount of Cu results in a decreasing in the stress level at cyclic deformation testing
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Junji TANI, Jinhou QIU, Hirofumi TAKAHASHI, Koji HIROSE, Kazuyuki ORIK ...
Article type: Article
Pages
513-514
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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This research aims to improve the performance of PNN-PZT actuators using a hybrid sintering process, which is a combination of microwave heating hot-press sintering process. In order to develop high-performance actuators, finer PNN-PZT powder was used in this study instead of conventional powder. Disk-shaped actuators were fabricated by both the hybrid sintering process and the conventional sintering process and their performances were compared. The results showed that the electromechanical coupling factor k_p was raised from 69.8% to 72.6% and the piezoelectric constant d_<31> was increased from -379×(10)^<-12> m/V and to -426×(10)^<-12> m/V.
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Masaya ISHIHARA, Ritsuko TSUZUKI, Katsuyoshi KONDOH, Eiji YUASA
Article type: Article
Pages
515-516
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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It is known that Mg is light metal and shows high specific strength while it has also some faults such as poor corrosion and heat resistance. In order to improve those properties, hot extruded Mg composite with Mg_2Si dispersions, which are reported for the intermetallic compound with high mechanical properties, were fabricated in this study. As a result, the relative densities of extruded materials are over 95%, In-situ synthesized Mg_2Si particles are uniformly dispersed in the Mg matrix. and flowed along the extrusion direction. In addition, from the comparison with hot extruded and hot forged composites, it was understood that extruded one was remarkably strengthened, and its UTS was almost 3 times of forged one.
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Ritsuko TSUZUKI, Masaya ISHIHARA, Katsuyoshi KONDOH, Eiji YUASA
Article type: Article
Pages
517-518
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Super light and high performance magnesium composite with Mg_2Si dispersions, which has excellent mechanical properties, was developed via combination of solid-state synthesis and hot extrusion. In this study, Bulk Mechanical Alloying (BMA) was firstly carried out for mixture of Mg-Si powders, and obtained compacts were hot extruded, then their microstructures and mechanical properties were evaluated. As a result, Mg_2Si dispersions became finer as BMA cycles increased, and were flowed along extrusion direction. While BMA'd materials shown higher mechanical properties, such as UTS, yield stress and elongation, than the same composite materials extruded without BMA process. Thus, it was confirmed that BMA technique is effective to fabricate fine Mg_2Si dispersions, and leads to the improvement of mechanical properties of those alloy.
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Wenbo Du, M. Iibuchi, K. Kondoh, E. Yuasa
Article type: Article
Pages
519-520
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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The Mg_2Si/MgO/Mg composites were successfully solid-state synthesized from the mixed Mg and SiO_2 powder on the route of hot forging. Results indicate that SiO_2 can completely react with Mg at the temperature of 853 K, and the content of the synthesized Mg_2Si/MgO increase with the increase in the SiO_2 content. The microstructure of the synthesized composite becomes fine and homogeneous when the as mixed powder was performed to the bulk mechanical alloying (BMA) process. The mechanical properties such as Vickers hardness (Hv) and tensile strength (UTS) of the composite show dependence on the content and size of the Mg_2Si/MgO dispersions.
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Masato IIBUCHI, Wenbo DU, Katsuyoshi KONDOH, Eiji YUASA
Article type: Article
Pages
521-522
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Magnesium usually has thermally stable oxide films on its surface, which can be broken by the mechanical force. The hardening phase of Mg_2Si is successfully synthesized by the solid-state reaction between Mg and SiO_2 powder on the route of hot forging and hot extrusion. The result indicates that hot extrusion is benefit to obtain fine and homogenous Mg_2Si/MgO dispersions in the Mg matrix. Comparing with that performed by hot forging, the Mg_2Si/MgO/Mg composite by hot extrusion shows superior mechanical properties.
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Yasuhiro SHIMAHASHI, Atsushi FUJII, Shizuo NISHIKAWA
Article type: Article
Pages
523-524
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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It becomes clear that the predominant cause of the formation of circumferential residual stresses in cylindrical drawn cups is the axial unbending of the wall element of the product at the exit of the die. The theoretical distributions of residual stresses through the wall thickness are calculated by the elasto-plastic finite element method and compared with the experimental results of mild steel products. It is also shown that the magnitude of the residual stresses near the inner surface at the middle part of cup wall is great enough to satisfy the yield condition of material.
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Kazunari YOSHIDA, Hiroyuki SATO, Fumihiro SATO, Kazuo SUGIYAMA, [in Ja ...
Article type: Article
Pages
525-526
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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The fabrication of Ni-Ti shape memory alloy precision screws using by the heading and form rolling have been investigated. The workability of the shape memory alloy is extremely poor and the dimensions of the processed product become larger after processing due to the shape recovery effect. The shape memory alloy has two characteristic properties, a shape memory effect and a superelastic effect. Therefore it is expected to be applied in medical, mechanical and electric fields as a wire and in the formation of precision screws. In this study, in particular, the processing limit during heading and the improvement of the dimensional precision of the threads were examined in the detail. Since light weight and small size are in demand for recent products, the prospect of realizing fabrication technology for the precision micro-screws is discussed.
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Hiroyuki MIZUKAMI, Tatuya ARAI, Tomomi HONDA, Yoshiro IWAI
Article type: Article
Pages
527-528
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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ITO (Indium Tin Oxide) thin films is commonly used as transparently conductive electrodes for optical display devices, for example liquid crystal panel display, plasma panel display. Conventionally wet chemical etching has been used for patterning of ITO thin films. But this method has some problems such as many steps in process and it is not eco-friendly because waste fluid processing is required. Then we aim at establishment of laser ablation processing which is eco-friendly. As the 1st phase for that, we examined the effects of wavelengths on processing ITO thin films using diode-pumped Nd : YLF. There is a close relation to wavelengths and the transmissivity characteristic of ITO thin films, and processing form changes when wavelengths differ. And the debris of an edge portion became high when a slit was used in the fourth harmonic. Therefore cautions are required for adjustment of a slit.
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Yukinobu OHTAKI, Hatsuhiko USAMI, Masayuki TAKADA, Junji SUGISHITA
Article type: Article
Pages
529-530
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Takayuki KUSAKA, Noriyo HORIKAWA, Keisuke KATAYOSE
Article type: Article
Pages
531-532
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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The fine blanking technique was applied to make holes in CFRP laminated composites. Punching tests were performed to clear effects of pre-stress and clearance between punch and die on accuracy of processing. From the experimental results, it was found that the punched hole without pre-stress had rough inner face with broken pieces of carbon fibers. However, the punched hole with pre-stress and 0.3% clearance had smooth inner face.
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Kazuhiro MORINO, Futoshi NISHIMURA, Yoshiaki YAMAOKA, Kensaku YAMANE, ...
Article type: Article
Pages
533-534
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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The wear tests under light load were carried out for some kind of radical nitrided SKD61 and ion nitrided one, in order to investigate the properties of wear and friction. In the case of ion nitriding and radical nitriding increased the ration containing NH_3,compound layer was observed. Surface layer was highly hardness by nitriding, and the hardness were almost the same in all cases. As a result, resistance to wear was highly improved by radical nitriding. Its degree was about 1% to quench and tenpered one, and one half to ion nitrided one. These results may be caused by the formation of compound layer.
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Kaoru HARA, Naoto OHTAKE, Kazunori KATO, Hiroya MURAKAMI
Article type: Article
Pages
535-536
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Aluminum space frame is one of the candidate to be applied to a structure of car bodies in future because of its light weight as well as high strength. To omit the secondary forming process in the production of aluminum space frame, variable shape extrusion apparatus which has a taper mandrel and four movable dies was developed and the characteristics of hot extrusion were investigated. As a result, it was found that the step mandrel provides good dimensional accuracy due to its bearings which is parallel to the extruding direction. But on the other hand, it was also found that pick-up was easy to occur on the surface of extrusions, by using the step-mandrel. Dies were coated with DLC around its bearings to prevent the dies from sticking of aluminum, and it was confirmed that the DLC coating has a significant effect to improve the conditions of the surface of extruded pipes.
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Yuichi AOKI, Naoto OHTAKE
Article type: Article
Pages
537-538
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Diamond-like carbon (DLC) films have been widely recognized as an excellent wear resistant coatings with a low friction coefficient against many kinds of counterparts. The tribological behavior of DLC films depend on not only the quality of the film but also the environmental conditions such as the substrate materials and the pressure applied. Particularly when the DLC films are distorted with the deformation of the soft substrate, the conventional DLC film should be damaged easily. In this study DLC films have been deposited by RF-plasma CVD from methane on the soft material substrates, such as a rubber and aluminum, and the friction and wear tests were conducted using a ball-on-flat configuration under some conditions. In the case of rubber substrate, DLC films show low friction coefficient from 0.2 to 0.3,even if large strain of ε=0.5 was applied to the substrate. A new coating method was proposed in the case of DLC coatings of Al substrate, which employs the segment structure of DLC film. It was found that the wear resistance of the Al substrate was significantly improved in comparison with the conventional DLC coatings.
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Akira AZUSHIMA, Koshiro AOKI, Takayuki AMEMIYA
Article type: Article
Pages
539-540
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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To improve tribological and mechanical properties of machine parts, surface modification methods have a wide range of applications. For example, TiN coating has been used as wear-resistant coating. In this paper, TiN coatings deposited by physical vapor deposition (PVD), especially arc ion plating method are investigated. The principal advantage of this method is to deposit coatings at lower temperature. The residual stress is generated in coatings during PVD process, and affects the adhesion between film and substrate. In this study, the residual stress in TiN coatings deposited by PVD arc ion plating process is measured. TiN coatings are deposited on several substrates (SKH59,SKD11,and WC). The substrate bias voltage is varied in the range of -50 to -200V. Residual stress is measured by X-ray diffraction (XRD) using sin^2φ method. The microhardness and the scratch critical load are measured using microvickers tester and scratch tester, respectively. Residual stress depends on the coating process parameters and the substrates.
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Akira AZUSHIMA, Koshiro AOKI, Hiroyuki Iwata
Article type: Article
Pages
541-542
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Owing to the hardness and mechanical stability of thin hard coatings, they have a wide range of applications. TiN coatings have been used as a wear resistant coating. The aim of this study is to research the frictional properties of TiN coatings with the preferred orientation of grains controlled by changing the substrate bias voltage. TiN coatings with a film thickness of 3μm are deposited on the substrate (SKD11) with the hardness of HV450 by PVD arc ion plating process. In these experiments, the substrate bias voltage is varied in the range of -20 to -200V. The orientation of TiN coatings is measured using X-ray diffraction. With increasing bias voltage, the preferred orientation of grains change from (200) orientation produced at -20 and -50V to (111) orientation produced at -100,-150,-200V. After the deposition, the coated disks are polished to controlled a same surface roughness (Ra≒0.02μm). The friction force at nano-scale is measured using atomic force microscope (AFM) to research the adhesion force between the coated disc and the ball. For the friction force at nano-scale, the specimens coated at -150 and -200V have better tribological properties than those do at -20 and -50V.
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Toshio HAGA, Kenta TAKAHASHI
Article type: Article
Pages
543-544
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Casting of fiber inserted aluminum alloy composite strip was tried using a downward melt drag twin roll caster. In this method, when the strip was cast, the fiber was inserted into the strip simultaneously. By inserting fiber in the puddle formed on the lower roll, it was possible to have inserted wire into the strip. The steel wire with diameter of 0.3mm was inserted into the strip. Sound puddle was formed and the fiber could be inserted into the strip successfully, when conditions were as below. Roll speed was high, slit of the nozzle was large and pouring temperature was high.
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Toshio HAGA, Kenta TAKAHASHI
Article type: Article
Pages
545-546
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Casting of fiber inserted aluminum alloy composite strip was tried using a downward melt drag twin roll caster. In this method, casting of the strip and insertion of the fiber was operated simultaneously. The steel wire with diameter of 0.3mm was inserted into the strip. When roll speed was low, and pouring temperature was high, the fiber inserted the strip could be without gap between the fiber and the strip. The fiber inserted composite strip could be cold rolled. The reduction of the fiber and the strip was almost equal. The gap between the fiber and the strip could be improved by the rolling. Reaction between the fiber and the strip was investigated using EPMA.
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Shinichi MATSUOKA, Tsutomu MURAI, Yoshinari OKI
Article type: Article
Pages
547-548
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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This paper discribes the influence of the Argon and Herium contents of shielding gases on TIG arc welding in magnesium alloy extrusions. Argon and Herium mixture gases (20 to 40 He contents) are effective toget the sound beads. And at this congitions, we can get high joint efficiengy above 80%. And we made the prototype of wheelchair made by magnesium alloy extrusions using this welding technology
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Noriatsu Hariyama, Shinichi Matsuoka
Article type: Article
Pages
549-550
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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We studied the die exit flow velocity change along the ram stroke advancement. Through our studies we found the following : ・The distribution of die exit flow velocity changes during initial and near end stages of extrusion. ・A ring filled with material that already has metal flow formed within has the effect of reducing the die exit flow velocity change at the initial and near end stages of extrusion by inserting the ring between the die and container.
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Yasuo SUGA, Atsushi SUBE, Yuichi MATSUMOTO, JIANBIN Ju
Article type: Article
Pages
551-552
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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In order to estimate the penetration of weld, two methods to monitor the natural frequency of the molten pool oscillation using arc sensor and to observe the pool using visual sensor are proposed and investigated. However, these methods have disadvantages respectively. Accordingly, a new method combining these two methods are proposed. In this study, an advanced penetration control method using information of molten pool oscillation and its shape are developed, and the validity of the control system is verified. The molten pool oscillation is detected by monitoring arc voltage. The form of molten pool is detected by machine vision. Then, development of the advanced penetration control is aimed at by using these sensors together. From the information acquired from two sensors, molten pool oscillation is analyzed and a penetration control system is developed. And the validity of the system is verified.
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Yasuo SUGA, Yuto HIBIKIYA, Kazuhiro MORI
Article type: Article
Pages
553-554
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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This paper deals with sensing of weld pool condition from reverse side, penetration control and arc length control in fixed pipe welding. In order to realize full-automatic welding of fixed pipes, it is important to control the back bead width properly. Accordingly, a method controlling the back bead width is proposed. As it is difficult to measure the back bead width directly, it is estimated by analyzing the molten pool shape and the dimensions. Furthermore, Neural Network is applied so as to estimate the relations among the shape parameters of the weld pool, welding conditions and the penetration of weld. The back bead width is controlled by controlling the welding current estimated by the output of the Neural Network. As the result of welding control experiments, the effectiveness of the proposed system in the penetration control of fixed pipes is verified.
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Kenji KANEKO, Kazuya NARAHASHI
Article type: Article
Pages
555-556
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Yuji HAYAKAWA, Motomichi ITOU, Yoshizumi NAKASUJI, You Chul KIM
Article type: Article
Pages
557-558
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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For the purpose of quantitatively evaluating residual stress through the thickness in ceramics/metals diffusion welds, a series of study have been carried out. In this paper, residual stress through the thickness generated by Cu and Si_3N_4 diffusion bonding was measured by inherent strain method. By the way, considering temperature dependency of materials constants, the experiment was simulated by thermal elastic-plastic FEM analysis. As the results, it was known that the magnitude and the distribution of residual stress through the thickness generated by diffusion bonding of ceramics and metals could be predicted.
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Shigeru Aoki, Tadashi Nishimura, Tetsumaro Hiroi, Toshikazu Ohsawa
Article type: Article
Pages
559-560
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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Welding is widely used for construction of many structures. Residual stress is generated because of locally given heat. Tensile residual stress on the surface degrades fatigue strength. In this paper, a new method for reduction of residual stress using random vibration during welding is proposed. As random vibration, filtered white noise is used. Effectiveness of the proposed method is examined experimentally. It is found that tensile residual stress near the bead is significantly reduced when random vibration is used.
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Yasuo Suga, Taewon KIM, Takashi Koike
Article type: Article
Pages
561-562
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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In order to improve problems and make use of advantages of the arc welding and the laser welding processes, hybrid welding process combined the TIG arc with the YAG laser was studied. As an experimental result, it was confirmed that the shot position of the laser beam is very important to obtain sound welds in hybrid welding. Therefore, a new intelligent system to monitor the welding area using vision sensor is constructed. Furthermore, control system to shot the laser beam to a selected position in molten pool, which is formed by TIG arc, is constructed. As a result, it is confirmed that the hybrid welding process and the control system are effective on the stable welding of thin stainless steel plates.
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Article type: Appendix
Pages
App2-
Published: September 20, 2002
Released on J-STAGE: August 01, 2017
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