对金属切削有重要影响的条件有工件材料、刀具材料、刀具几何形状、切削速度、进给率、切削深度和所用的切削液。
The conditions which have an important influence on metal cutting are work material, cutting tool material, cutting tool geometry, cutting speed, feed rate, depth of cut and cutting fluid used.
苗木直径较大地影响切削阻力，转速较大地影响切断率。
The diameter of seedling greatly influences the cutting resistance and the rotation speed greatly influences the cutting-out rate.
通过考虑机床和工件的实际约束，建立了以最大生产率为目标的切削参数数学模型。
By considering the actual constraints of machining tool and workpiece, the mathematic model of cutting parameters for the greatest productivity is established.
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