A Study on Cutting Force in the Milling Process of Glass
A Study on Cutting Force in the Milling Process of Glass
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DOI：
10.1016/s1526-6125(05)70087-6
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发表时间：
2005
影响因子：
6.2
通讯作者：
T. Matsumura;Takaharu Hiramatsu;T. Shirakashi;T. Muramatsu
中科院分区：
文献类型：
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作者：
T. Matsumura;Takaharu Hiramatsu;T. Shirakashi;T. Muramatsu
探讨了加工玻璃而不发生脆断的铣削工艺。虽然玻璃是脆性材料，但如果未变形的切屑厚度小于1微米，则玻璃可以以延性模式变形。未变形切屑厚度在上切铣削过程中从零开始。因此，玻璃可以在切削开始时没有脆性断裂的情况下进行加工，然后在一定的未变形切屑厚度下发生脆性断裂。脆性断裂的区域可以通过刀具进给最终去除。因此，加工表面可以在切削过程的延展模式下制成。对玻璃上切铣削的切削过程进行了讨论，并对切削力进行了测量。切削力在切削开始时随刀具的旋转而逐渐增大，当切屑达到一定的未变形切屑厚度后，切削力在一个恒定的平均值附近振荡。从韧性到脆性的过渡模式是由切削力的变化来说明的。从铣削加工机理出发，研究了切削条件对过渡区的影响。证明了在高进给速度下，可以获得大径向切削深度的无脆性裂纹的加工表面。
The paper discusses the milling process for machining glass without brittle fracture. Although glass is a brittle material, it can be deformed in a ductile mode if the undeformed chip thickness is less than a micrometer. The undeformed chip thickness starts at zero in the up-cut milling process. Glass, therefore, can be machined without brittle fracture at the beginning of the cut, and then brittle fracture occurs at a certain undeformed chip thickness. The area of brittle fracture can be finally removed with the cutter feed. As a result, the machined surface can be made in a ductile mode of the cutting process. The cutting process in the up-cut milling of glass is discussed and the cutting force measured. The cutting force gradually increases with the cutter rotation at the beginning of the cut, and oscillates about a constant mean value after a certain undeformed chip thickness. The transition from ductile to brittle mode is specified in the change of cutting force. The effect of cutting conditions on the transition is investigated with the mechanism of the milling process. It is proved that the machined surface without brittle cracks can be obtained in a large radial depth of cut at a high feed rate.