【摘要】 针对周铣加工的载荷控制问题,提出了一种恒力余量规划策略.首先分析了周铣加工的切削力模型,确定了刀具的浸入包角为影响切削载荷最显著的因素.然后以加工过程中浸入包角恒定为原则规划加工的余量分布情况,并探讨了余量优化策略对传统加工方法可能产生的影响.加工实验结果表明恒力余量规划方法对铣削载荷有很好的稳定作用.更多还原

【Abstract】 A new allowance scheduling strategy is presented,which can maintain a steady-state cutting in peripheral milling.Firstly,the cutter engagement angle is confirmed as the most dominant factor for cutting force in peripheral milling by analyzing the cutting force models reported in literatures.Then,the allowance,material to be removed in the next process,is modified such that the cutter engagement angle along the next path is regulated at a desired level.The possible influences on machining process by applying this strategy are also discussed.The improvement of cutting force stability by applying the new allowance scheduling strategy is experimentally validated.更多还原