粗加工

定义

以较大切削量去除材料的阶段。

以前置元数据中的定义作为统一语义，并在装夹、加工与检验环节保持一致。

公式/规则

• 粗加工优先追求稳定去除率，并为后续精加工保留受控余量。
• 只有在排屑、主轴负载和装夹稳定后，才继续提高去除量。

典型范围

• Leave a stable allowance for finishing instead of consuming the whole stock in one aggressive roughing pass.
• For thin walls or weak fixtures, reduce radial engagement before raising feed or axial depth.

现场场景

• Open up chip evacuation and spindle load margin before increasing stock removal on the next lot.
• Split roughing into predictable stages when the workholding or part stiffness changes across the program.

常见错误/排障

• If chatter rises during roughing, reduce engagement or improve support before cutting speed is increased again.
• If roughing leaves unpredictable stock, review tool deflection, wear, and path overlap before blaming finishing.

相关工具

• Feed Speed Calculator
• Machining Time Estimator