再生びびり振動の発生におよぼす工具逃げ面の摩耗の影響 : 第1報,摩耗部の被削材への削り込みによる動的切削力のモデル

概要

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It is important that the relationship between self-excited chatter and tool wear is examined theoretically, since worn tools are generally used in practical machining shop. Therefore, in this study, equations of dynamic undercutting force caused by tool flank wear are derived. In the derivation of these equations, it is assumed that the relationship between depth of cut and amount of removed material for the case of an orthogonal cut with a worn tool equals that in the case of an orthogonal cut with a sharp-edged tool. On a stability chart of regenerative chatter calculated using the dynamic undercutting forces derived in this study, the stability limit increases greatly even when the width of flank wear is 0.3 mm, and the limit rises quickly at low cutting speed. The characteristics of these stability limits are in good agreement with experimental results given by previous investigators.
一般社団法人日本機械学会の論文
1995-04-25