Effects Of Grinding Conditions Research Articles

The Effect of the Elastic Deformation of Grinding Machines on the Profile Errors of Workpieces : 2nd Report, The Effects of Grinding Conditions and Operating Methods

The generating mechanism of the elastically produced errors had been clarified in the first report. There remain, however, some questions about optimum grinding conditions, under which the appointed accuracy can be obtained most efficiently. In this report, from such a viewpoint, the authors introduced the profile improving coefficient and the residual stock removal coefficient which showed the variation of profile errors in traverse grinding. The effects of grinding conditions on the profile errors were analytically investigated with these coefficients, and the results of the analysis were compared with the experimental results. Operating methods to prevent the profile errors on the end of a workpiece were also studied. And, it was shown that the limitation of the over-run of wheel and the adequate time of the dwell were considerably useful for improving the accuracy of workpieces and the grinding efficiency.

The Effect of the Elastic Deformation of Grinding Machine on Profile Errors of Workpiece : 2nd Report, The Effects of Grinding Conditions and Operating Methods

The Effect of the Elastic Deformation of Grinding Machine on Profile Errors of Workpiece : 2nd Report, The Effects of Grinding Conditions and Operating Methods

研削加工の諸条件が研削砥石の性能に及ぼす影響について(第3報)

Cutting edges mean not always abrasive grains that are supported by bond but there are many types of cutting edges, such as grains coated with bond and bonding bridges acting as cutting edges and so on, because grinding wheels are constituted of abrasive grains and bond material.As cutting abilities of bond material are far inferior than that of abrasive grains, the more bond material acting as cutting edges exist, the poorer cutting abilities of grinding wheels become.The virtue of grade on the performance of grinding wheels owe not only the bonding forces that have influence upon the shapes and the distributions of cutting edges but also amount of bond material acting as cutting edges.In this report, some discriminating methods between bond material acting as cutting edges and abrasive grains are described, and the behaviors of the former in grinding process, such as wear and distributions are studied through microscopic observations.The results are as follow;(1) for the discernment of cutting edges whether they are abrasive grains or bond material, difference of streaks pattern on the worn surface of cutting edges are utilized most effectively, (2) bond material acting as cutting edges increase as harder the grade of wheels, and about vitrified wheels of A 46, from 25 to 40 per cent of cutting edges of all are occupied by bond material.

研削加工の諸条件が研削砥石の性能に及ぼす影響について(第4報)

研削加工の諸条件が研削砥石の性能に及ぼす影響について(第4報)

研削加工の諸条件が研削砥石の性能に及ぼす影響について (第2報)

研削加工の諸条件が研削砥石の性能に及ぼす影響について (第2報)

研削加工の諸条件が研削砥石の性能に及ぼす影響について (第1報)

Cutting edges mean not always abrasive grains that are supported by bond but there are many types of cutting edges, such as grains coated with bond and bonding bridges acting as cutting edges and so on, because grinding wheels are constituted of abrasive grains and bond material.As cutting abilities of bond material are far inferior than that of abrasive grains, the more bond material acting as cutting edges exist, the poorer cutting abilities of grinding wheels become.The virtue of grade on the performance of grinding wheels owe not only the bonding forces that have influence upon the shapes and the distributions of cutting edges but also amount of bond material acting as cutting edges.In this report, some discriminating methods between bond material acting as cutting edges and abrasive grains are described, and the behaviors of the former in grinding process, such as wear and distributions are studied through microscopic observations.The results are as follow;(1) for the discernment of cutting edges whether they are abrasive grains or bond material, difference of streaks pattern on the worn surface of cutting edges are utilized most effectively, (2) bond material acting as cutting edges increase as harder the grade of wheels, and about vitrified wheels of A 46, from 25 to 40 per cent of cutting edges of all are occupied by bond material.