All issues
Volume 20, Issue 232
Displaying 1-9 of 9 articles from this issue
- |<
- <
- 1
- >
- >|
-
[in Japanese]1954 Volume 20 Issue 232 Pages 235-239
Published: July 05, 1954
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSDownload PDF (1108K) -
Fusao HAYAMA1954 Volume 20 Issue 232 Pages 240-245
Published: July 05, 1954
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSResearches on brass containing Pb as the material used for precision mechanism (clock and watch, etc.) have been performed, concerning the machinability for cutting and shearing, the qualities of worked surface, and the wear properties. In the first report the experimental results of the mechanical properties, that is hardness, tensile strength, elongation and shock value are described.View full abstractDownload PDF (1160K) -
Researches on the Abrasive-Cutting-off of Plastics (Part 2)Akira KOBAYASHI1954 Volume 20 Issue 232 Pages 245-250
Published: July 05, 1954
Released on J-STAGE: February 16, 2010
JOURNAL FREE ACCESSThis report is the examination of the hollows after elastic recovery produced when the single grain is penetrated into the surface of phenolic laminated resins by various loads (50800g). We compared the results of similar experiments with diamond pyramid, steel balls of three kinds of diameter, and steel cones of three kinds of conical angle.
The results obtained are as follows:
1. We can not find the difference among C, GC and A grains for phenolic laminated resins.
2. The deformation is affected largely by the tip form of grain.
3. We may assume the, grain acts as a cone with nose radius microscopically.View full abstractDownload PDF (1264K) -
Relation between lapped quantity and lapping conditionsMasahisa MATSUNAGA1954 Volume 20 Issue 232 Pages 251-254
Published: July 05, 1954
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSThe relation between lapped quantity and lapping conditions is calculated on the assumption that a lapping process involves minute scratching by sharp edges of abrasives, and the result is shown in formula (1). This formula considerably agrees with the experimental values, leaving a little discrepancy. The reason ofthis discrepancy between the theoretical and experimental values is discussed in reference to abrasive size, load, hardness of the specimen and mixing ratio of oil and abrasives.View full abstractDownload PDF (754K) -
[in Japanese]1954 Volume 20 Issue 232 Pages 255-257
Published: July 05, 1954
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSDownload PDF (697K) -
Akira YAMAMOTO1954 Volume 20 Issue 232 Pages 257-261
Published: July 05, 1954
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSThis paper as the continuation of the previous one, relates the computation of tool-chip-interface temperatures when the cutting speed Vc and the thickness of uncut chip t1 are varied. If the values of Vc and t1 are small, chips cannot be regarded as semi-infinite bodies, but they are treated as the plates of t2 thickness by using the image method. In this case, the temperature-rise due to frictional work may be about twice as much as those in case. that chips are considered as semi-infinite bodies. Different from the result of Trigger, the tool-chip contact area increases as Vc grows greater. These computed interface temperatures considerably agree with those obtained by means of the thermocouple technique which are compensated for emf. generated at the tool cold-junction.View full abstractDownload PDF (823K) -
[in Japanese]1954 Volume 20 Issue 232 Pages 262-266
Published: July 05, 1954
Released on J-STAGE: February 16, 2010
JOURNAL FREE ACCESS -
[in Japanese]1954 Volume 20 Issue 232 Pages 266-267
Published: July 05, 1954
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSDownload PDF (277K) -
1954 Volume 20 Issue 232 Pages 272-274
Published: July 05, 1954
Released on J-STAGE: June 30, 2009
JOURNAL FREE ACCESSDownload PDF (771K)
- |<
- <
- 1
- >
- >|