金属正交切削模型研究进展

鉴于切削加工巨大的经济和工艺价值,建立切削过程的理论模型,用以预测切削状态,对于优化切削条件、提高加工效率具有重要意义。国内外学者致力于该领域的研究,并在过去的几十年里建立了许多经典的正交切削模型。然而由于切削过程异常复杂,现有的切削模型并不能满足人们对切削过程精确预测的要求。因此,总结并了解已有的切削模型,对于建立更为有效的切削过程预测模型具有重要的指导和启示作用。系统回顾近几十年来在正交切削领域具有代表性的力学模型,重点介绍Merchant、Piispanen、Shaw、Lee和Shaffer、Hill、Fang、Oxley及Atkins等人的工作,阐述各自模型的主要理论、成果及其联系。最后,对正交切削模型的发展方向进行简要探讨。

ADVANCES IN ORTHOGONAL CUTTING MODELS

For the obvious economic and technical importance of machining,the development of theoretical models to predict physical behavior during metal cutting could be of significant importance,which would lead to optimizations to machining parameters and improvements to productivity.This has been a major preoccupation within the machining research community,and numerous classical orthogonal cutting models have been proposed during the past decades.However,the cutting process is extremely complex,and the existing models can’t satisfy the requirements to predict the cutting process accurately.Thus,summarizing and understanding the existing cutting models has enlightening and guiding effects to create more reliable and accurate models.Following a systematic review of the representative orthogonal cutting models that developed in the recent decades,the works of Merchant,Piispanen,Shaw,Lee & Shaffer,Hill,Fang,Oxley and Atkins are concentratedly introduced.The main theories and achievements of each model and the relationships between them are commented.At last,the development direction of orthogonal cutting models is further discussed.