emoval rates, and (e) reduced tendency for vibration and chatter.РIt may be difficult to heat and maintain a uniform temperature distribution within the workpiece. Also, the original microstructure of the workpiece may be adversely affected by elevated temperatures. Most applications of hot machining are in the turning of high-strength metals and alloys, although experiments are in progress to machine ceramics such as silicon nitride. РSUMMARYРMachinability is usually defined in terms of surface finish, tool life, force and power requirements, and chip control. Machinability of materials depends not only on their intrinsic properties and microstructure, but also on proper selection and control of process variables.Р译文:Р20.9 可机加工性Р一种材料的可机加工性通常以四种因素的方式定义:Р分的表面光洁性和表面完整性。Р2、刀具的寿命。Р3、切削力和功率的需求。
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