Preprints of the National Meeting of JWS

Browse

Search
Browse

All issues

Preprints of the National Meeting of JWS

Displaying 101-150 of 210 articles from this issue

Download citation

Show all abstracts

Development of All Position TIG Welding Robot System for Boiler Tube

Yukio IKEZAWA, Masatsugu TAKEICHI, Akinori OSA

Session ID: 314
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.314.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (350K)
Development of cold tandem GMA welding system

hideo shiozaki, toshirou uezono, tetsuo era, tomoyuki ueyama

Session ID: 315
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.315.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (614K)
Application for thin plate by cold tandem GMA welding

hideo shiozaki, toshirou uezono, tetsuo era, tomoyuki ueyama

Session ID: 316
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.316.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (618K)
Development of Pure Copper Photonic Crystals by Using Micro-stereolithography for Beam Emission Control of Millimeter Wave

Soshu Kirihara, Daisuke Sanwou

Session ID: 317
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.317.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (426K)
Characteristics of laser absorption in 10 kW fiber laser welding

naoyuki matsumoto, yohei abe, yousuke kawahito, masami mizutai, seiji ...

Session ID: 318
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.318.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

10 kW fiber laser welding of stainless steel produces deep-penetration welds of more than 12 mm depth, and thus high laser absorption is expected. This research reports the characteristics of 10 kW fiber laser absorption measured in stainless steel with calorimetric method under several welding conditions.

View full abstract

Download PDF (484K)
Absorption of fiber laser in aluminum alloy and stainless steal

yousuke kawahito, naoyuki matsumoto, keisuke kinosita, syuuhou tubota, ...

Session ID: 319
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.319.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (896K)
10 kW Fiber Laser Welding with Optical System of Long Focal Length and Long Depth of Focus

Youhei Abe, Naoyuki Matsumoto, Masami Mizutani, Yousuke Kawahito, Seij ...

Session ID: 320
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.320.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (1248K)
Fundamental Study of Fiber Laser Remote Welding

Shinpei Oiwa, Masami Mizutani, Yousuke Kawahito, Seiji Katayama, Hiden ...

Session ID: 321
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.321.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (2506K)
Numerical Calculation of Laser Light Path Influenced by High Temperature Gas above Specimen during Laser Welding

Masami Mizutani, Seiji Katayama

Session ID: 322
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.322.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

If a steep refractive index gradient by a thermal distribution is generated above the specimen during welding, a inflection of the laser light path will be induced, which is similar to the phenomena of a mirage and a heat haze. Therefore, in order to investigate the amount of the inflection of the ray path, a numerical calculation about the laser trajectory in assumptive refractive index media by a temperature gradient was carried out. As the result of the calculation, it was suggested that the steep refractive index gradient above the specimen during welding may degrade the beam quality and induce the focal point to shift far.

View full abstract

Download PDF (417K)
Development of In-process Monitoring System during Remote Laser Welding

Kenji Shinozaki, Motomichi Yamamoto, Kenta Morinaga, Takuya Ozaki, Yus ...

Session ID: 323
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.323.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (364K)
In-Process Monitoring and Adaptive Control in Full Penetration of Thin Titanium Sheets with Single-Mode Fiber Laser

Terumasa Onishi, Yousuke Kawahito, Seiji Katayama

Session ID: 324
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.324.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (512K)
Effect of process parameters on bead profile and tensile properties of butt-joints in fiber laser-MIG hybrid welding of a commercially pure titanium

LI CUI, Guojian Xu, Muneharu Kutsuna

Session ID: 325
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.325.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

A fiber laser-MIG hybrid welding process was introduced to weld of commercially pure titanium (CP-Ti) butt-joints. Experimental investigations were carried out to examine the influence of the distance between laser and arc, focal position, gap and arc currents on weld bead top appearance, cross section, microstructure, microhardness and tensile properties of the welds. Optical metallography and Vickers microhardness test show that the weld metal has the coarsest grains and the highest microhardness compared with the HAZs and base metal. It is found that the processing parameters have a great influence on the bead dimension. Results show that the processing parameters has no influence on tensile strength of the welds, but have great influence on the elongation the welds. Tensile test shows that the joints obtained by hybrid fiber laser-MIG welding have better combination of strength and ductility.

View full abstract

Download PDF (121K)
Study of Bead Formation and Gap Tolerance in Laser-Arc Hybrid Welding of Aluminum Alloy with Filler Addition (FLA Welding Method)

Jing-bo Wang, Hitoshi Nishimura, Yoshiaki Takenaka, Seiji Katayama, Ma ...

Session ID: 326
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.326.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Laser-arc hybrid welding of aluminum alloy combining fiber laser with MIG arc was studied when an additional filler wire was used to increase deposited metal. In this report, the effect of MIG arc welding conditions and filler feeding conditions on weld bead formation and the gap tollerance, when using this method to a thin plate butt joint of aluminum alloy, will be discussed.

View full abstract

Download PDF (346K)
Effect of laser irradiation on penetration of hot wire TIG welding

Wataru Shinseki, Minoru Nishida, Katsushi Minakuchi, Tatsunori Kanazaw ...

Session ID: 327
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.327.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (110K)
Study on Strength of Fe/Al Laser Lap Joint

Mitsuaki Makita, Jippei Suzuki, Hitoshi Ozaki, Hiroshi Kawakami

Session ID: 328
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.328.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Joint strength is discussed for the lap joint of mild steel and aluminum manufactured by using laser. Fractured stress of the joint is increased with decreasing heat input. In the case of two beads weld, joint strength is increased with increasing the distance between two beads.

View full abstract

Download PDF (216K)
CO2 Laser Welding of high Mn steel and Low Carbon Steel

Boyoung Jeong, Tae Kyo Han

Session ID: 329
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.329.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

High Mn steel has been developed for automotive applications since the steel has an excellent combination of strength and ductility. However, high Mn steel has a few problems related to its chemical compositions in welding. In this study, development of dissimilar laser welding technology has been investigated for expanding application of high Mn steel. The results have shown that dissimilar weld joint between high Mn steel and carbon steel has poor mechanical properties using STS309L filler wire or not.

View full abstract

Download PDF (238K)
Determination of Initial Radius for Bowl Laser Forming

Mamsnori GOTOH, Tetsuya AKIYAMA, Toshio TERASAKI

Session ID: 330
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.330.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (162K)
Effect of Initial Radius on Inplane Strain in Saddle Laser Forming

Mitsuyoshi KAKUHO, Tetsuya AKIYAMA, Toshio TERASAKI

Session ID: 331
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.331.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (168K)
Dissimilar metal joining of stainless steel to aluminium alloy by laser roll welding

Muneharu Kustuna, Tadashi Koumura

Session ID: 332
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.332.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Dissimilar metal joining of SUS304 stainless steel to A5052 aluminium alloy has been investigated by laser roll welding using a 2kW fiber laser. The effects of process parameters such as roll pressure and flux on the formation of intermetallic compound and the joint properties. In the case of using flux, most of the specimen were failured in the softened HAZ in tensile shear test. The higher the roll pressure is, the higher the tensile shear strength of specimen is. The joint efficiency was 85%.

View full abstract

Download PDF (54K)
Numerical Simulation of Thermal Cycles in Laser Roll Welding of Low Carbon Steel to Aluminum Alloy

Hitoshi Ozaki, Takamitsu Kato, Muneharu Kutsuna

Session ID: 333
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.333.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

The numerical simulation of thermal cycles in Laser Roll Welding of low carbon steel to aluminum alloy was investigated, and the simulation conditions were performed optimization. The prediction of weldable conditions was also investigated by using the optimized condition.

View full abstract

Download PDF (683K)
Dissimilar materials joint between A5052 and plastics by using a pulse YAG laser

Kousei Oyama, Yoshiharu Mutoh, Yukio Miyashita, Masaru Takahashi, Hiro ...

Session ID: 334
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.334.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (150K)
Laser-assisted direct joining of titanium alloy and polyethylene terephthalate

Yusuke Niwa, Yousuke Kawahito, Shuji Kubota, Seiji Katayama

Session ID: 335
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.335.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (528K)
Development of High-Quality Cladding Process using Fiber Laser

Kenji Shinozaki, Motomichi Yamamoto, Masaki Sakata, Sosuke Kurachi, Hi ...

Session ID: 336
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.336.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (263K)
Surface modification of aluminum alloy using special laser peening

Hiroki Inoue, Haruki Mizutani, Muneharu Kutsuna

Session ID: 337
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.337.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Special laser peening process that is the surface modification process based on laser peening was developed, and it was tried whether the MoS2 powder can be actually drive in to the aluminum alloy by special laser peening process. The optimization of special laser peening condition was also investigated.

View full abstract

Download PDF (1087K)
The behavior of iron oxide film on LASER welds.

TAISHI TARUI, NOBUHIRO YOSHIKAWA, KAZUHIKO KAGIYA

Session ID: 338
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.338.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Laser welding that has the high energy density is excellent method , because of narrow welding bead and heat-affected zone. However, when steel sheet is welded without shielding gas, thick iron oxide film forms on the surface of the weld. And thick iron oxide film causes reduction of coating adhesion. This report shows about behavior of iron oxide film and influence on coating adhesion.

View full abstract

Download PDF (1167K)
Development of Cladding of Metal Powder with Laser Irradiation

Masato OTANI, Tomiko YAMAGUCHI, Kazumasa NISHIO, Genya KAWAKITA, Kingo ...

Session ID: 339
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.339.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (161K)
Variation of Material Properties of Titania Film by Short Pulsed Laser Irradiation

Yoshiaki YANO, Togo SHINONAGA, Masahiro TSUKAMOTO, Nobuyuki ABE, Hitos ...

Session ID: 340
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.340.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (144K)
Effects of Grid Length in Welding Direction on High Accurate Predictionof Welding Distortion

Jae-Yik Lee, Koutarou INOSE, You-Chul KIM

Session ID: 341
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.341.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

.

View full abstract

Download PDF (249K)
Thermal Elastic-Plastic FEM Analysis of Typical Welded Joints and Estimation of Inherent Deformations through Inverse Analysis

RUI WANG, HISASHI SERIZAWA, HIDEKAZU MURAKAWA

Session ID: 342
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.342.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

In this research, the inherent deformations of bead-on plate welding and fillet welding for 8 different steel materials are estimated through both 3D thermal elastic-plastic FEM analysis and the inverse analysis. Also, these simulations are verified by the experiments.

View full abstract

Download PDF (124K)
A Numerical Study of Parameters Governing an Inherent Deformation Database of Plates Formed by Line Heating

ADAN VEGA, SHERIF RASHED, HISASHI SERIZAWA, HIDEKAZU MURAKAWA

Session ID: 343
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.343.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

In this report, through a three dimensional thermo-elastic-plastic FEA using a in-house code based on iterative substructure method, the factors affecting inherent deformation produced in steel plates formed by line heating are studied and clarified.

View full abstract

Download PDF (256K)
Study on the Calculation Method based on Inherent Strain for the Prediction of Weld Distortion of Car Components

Masahito Mochizuki, Akihiro Tatara, Yoshiki Mikami, Masao Toyoda, Yosh ...

Session ID: 344
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.344.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (586K)
Deformation behavior of UO steel pipe subjected to axial cyclic loading

MASAKI MITSUYA, YOSHIKAZU HASHIMOTO, HIROSHI YATABE

Session ID: 345
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.345.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (320K)
Welding deformation and the feature for each pass on multilayer welded butt joint

Hiroyuki Imamura, Toshio Terasaki, Keisuke Kamitani

Session ID: 346
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.346.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Welding deformation is a very important problem in welding structure.Welding deformation for each pass in multilayer welded butt joint was measured using 3D coordinate measuring machine. Then, Influence of the welding sequence giving the welding deformation was claritied.

View full abstract

Download PDF (31K)
Effect of Nember of Pass on Welding Deformation and Inherent Strain for SUS304

Toshio Terasaki, Takanori Kitamura

Session ID: 347
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.347.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

SUS304 is a material that causes the work hardening. In the multilayer welding, the multiple thermal cycle is received. It is guessed that the welding deformation is different in one pass and multilayer welding because of the work hardening. It was examined whether to cause this difference by the experiment and the numerical analysis.

View full abstract

Download PDF (656K)
Proposal of measuring method welding deformation in T joint by fillet welding

Masami Harada, Toshio Tearsaki, Yoshinobu Akiyama

Session ID: 348
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.348.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Arbitrary 3D coordinates on the surface of welded specimen are measured by 3D coordinates measuring machine, and the method of measuring welding deformation from the change in distance between coordinates before and after the welding was proposed.

View full abstract

Download PDF (220K)
Development of an Estimation Method of Welding Deformation for Multi-layer Welded Joints of Thick Plates

Mitsuyoshi Nakatani, Kazuhito Yokotani, Kazuhiko Tani, Yosuke Yamazaki ...

Session ID: 349
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.349.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (66K)
Basic study on residual stress occurred at start and end point of welding

TADAYUKI HASEGAWA, SATORU NISHIKAWA, SHIZUO NAKADA, KAZUO OGAWA, HIDEK ...

Session ID: 350
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.350.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Using welded plate specimen, residual stress for the start and end point of welding, which was unstable in welding, was measured and compared with that of steady state part.The longitudinal stress component on SEP was the same as that of steady state, while the transverse stress component was different from that of steady state.

View full abstract

Download PDF (49K)
Development of Welding Process for Reducing Residual Stress of Stainless Steel Pipes

Takeshi Obana, Shoji Imanaga, Mitsuo Kato, Eiji Ashida, Masahisa Inaga ...

Session ID: 351
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.351.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

To suppress stress corrosion cracking of the inside surface of the stainless steel pipes that are widely used for nuclear power plant, a new welding process for reducing the tensile residual stress of the welded zone, which is one of the factors inducing stress corrosion cracking, was developed. The feature of the developed welding process was that, in order to reduce the tensile residual stress, a low transformation temperature welding wire, which has martensitic transformation expansion in room temperature after welding, was used to suppress the solidification shrinkage of the weld metal. Moreover, the tensile residual stress of the welded zone could be reduced by the welding process, and special additional equipments such as heating and cooling system were not necessary. A austenitic stainless steel pipe was welded by using low transformation temperature welding wire, and the residual stress of the inside surface of the pipe after welding was measured by using released stress method with strain gauges. The result indicated that, compared with the usual welding process, which used a welding wire of austenitic stainless steel and produced tensile residual stresses of +100MPa or more, the developed welding process produced compressive stresses of -100MPa or less for both of the hoop and axial directions. Therefore, the effect of reduction of residual stress was significant by using the developed welding method.

View full abstract

Download PDF (45K)
Mechanical Modeling of Martensitic Transformation and Verification of Its Validity

You-chul KIM, Jae-Yik LEE, Sang-Hyong Lee

Session ID: 352
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.352.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

.

View full abstract

Download PDF (258K)
Examination of the welding process for the residual stress reduction by using low transformation temperature welding wire

JUNJI YAMAMOTO, KAZUO HIRAOKA, MASAHITO MOCHIZUKI

Session ID: 353
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.353.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Welding process for residual stress reduction was investigated on the fillet-welded joint by using low transformation temperature welding materials. As a result of having examined some welding sequence by using numerical analysis, residual stress on the weld toe near the edge of stiffener was reduced by dividing the weld line into the side part and the edge part in comparison with the weld sequence of welding at a time.It is found that the divided welding process is effective to reduce the residual stress on the weld toe.

View full abstract

Download PDF (114K)
Relation between Stress for Quench-Induced Cracking and Impurity Element for Intergranular Embrittlement

Michiaki Fukuya, Toshio Terasaki, Hiroyuki Imamura, Atsushi Fujita

Session ID: 354
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.354.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (250K)
Numerical Analysis of the Effect of Microscopic Residual Stress on Fatigue Crack Propagation of Ferrite-Martensite Lamellar Microstructure

Yoshiki Mikami, Akihiro Inao, Hiroshi Shimanuki, Masahito Mochizuki, M ...

Session ID: 355
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.355.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (698K)
Verification of delaying fatigue crack propagation by TRIP-effect of residual austenite

You-Chul KIM, Sang-Hyong LEE, Yusuke HAGEYAMA, Chiaki SHIGA, Kazuo HIR ...

Session ID: 356
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.356.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (134K)
Monitoring and Detection of Corrosion/Erosion by FSM

Kentaro OKU, You-Chul KIM

Session ID: 357
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.357.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (242K)
Study on the method of drilled flange Beam-to-Column joints welded on site

Part1 Outline of experiment

kazunori hattori, tadao nakagomi, kazuma tobori, yoshihiro sakino

Session ID: 358
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.358.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (72K)
Study on the Method of Drilled Flange Beam-to-Column Joints Welded on Site-Part 2 Result of Experiment and Consideration-

Kazuma Tobori, kazunori hattori, Tadao Nakagomi, Yoshihiro Sakino

Session ID: 359
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.359.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (222K)
Experiments of Repair/Reinforcement by Welding under Repeated Loads

Repair/Reinforcement by welding for steel bridges in service(4)

Yasuo AGANO, Shouichiro FUJIHIRA, Sang-Hyong LEE, You-chul KIM

Session ID: 360
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.360.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

In previous paper, cracks of welds under repeated loads were investigated with changing the opening displacement at groove. It suggested the repaire's methods of welds in the case of crack's occurrence. In this paper, cracks of welds under repeated loads are investigated with changing repeated frequency and groove angle. The results of the experiment are reported.

View full abstract

Download PDF (146K)
Development on Ultrasonic Tesiting Technique for Thin Steel Plate Weld Joints

Motohiro Kasahara, Tadao Nakagomi

Session ID: 361
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.361.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (103K)
Application of Laser arc hybrid welding for metal deck-bridge

Koutarou INOSE, Junko KANBAYASHI, Isao KAWAGUCHI, Katsura OOWAKI, Yasu ...

Session ID: 362
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.362.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

[in Japanese]

View full abstract

Download PDF (994K)
Friction stir welding of Zr55Cu30Ni5Al10 bulk metallic glass

Young Su Ji, Fujii Hidetoshi, Kazuhiro Nakata, Kiyoshi Nogi, Hisahichi ...

Session ID: 401
Published: 2008
Released on J-STAGE: October 28, 2008

DOIhttps://doi.org/10.14920/jwstaikai.2008f.0.401.0

CONFERENCE PROCEEDINGS FREE ACCESS

Show abstractHide abstract

Zr55Cu30Ni5Al10 Bulk metallic glass was jointed using the friction stir welding. Mechanical properties and microstructure of welded joints were analyzed. it was found that the amorphous structure and original mechanical properties were maintained.

View full abstract

Download PDF (197K)

feedback

Top

Register with J-STAGE for free!