スナッギング研削に関する研究 : 砥石が打撃的研削をする場合の研削機構解析

概要

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Grinding mechanisms are theoretically analyzed when tolerably high amplitude of wheel vibration causes the wheel to knock the work once a revolution as usually seen in the snagging operation. Insisting the wheel on a given predetermined vertical feed rate pattern which is assumed for a practical motion of the wheel during knocking (grinding), grinding mechanism is represented such as configuration and area of the wheel-work contact, instantaneous metal removal rate, cumulative volume removed, undeformed chip sectional area, and grinding forces in one blow grinding process. Taking a set of reasonable numerical values, the analysis is examined and compared with that of no vibration taken account. The instantaneous metal removal rate per unit contact area is identical with the vertical feed rate. Undeformed chip sectional area and grinding force is uniformly distributed on the contact face. Larger mean undeformed chip sectional area than that of the analysis without vibration is resulted in fairly decreased power con! sumption per unit metal removal rate. Instantaneous equivalent stiffness of contact between wheel and work is estimated which is extremely higher than that of without vibration.
公益社団法人精密工学会の論文
1983-07-05