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降低切削温度并有效地从切削刀片导出热量,可提高切削刀具的耐用度。刀柄材料的热物理性能对此过程有一定的影响。刀柄材料也影响到切削刀片弯曲时的塑性变形,因为刀柄支承区被剧烈加热而产生蠕变。为了弄清不同刀柄材料对切削温度和刀具耐用度的影响情况,进行了如下研究。试验用机械夹固T15K6硬质合金刀片的车刀进行,其几何角度为:φ=45°,γ=7°,α=7°,λ=0°。为了按切削刀片的物理—机械性能建立比较条件,在试验前,按热电动势的大小对刀片进行了筛选。
Reducing the cutting temperature and effectively dissipating heat from the cutting insert enhances the durability of the cutting tool. The thermophysical properties of the shank material have some effect on this process. The shank material also affects the plastic deformation of the cutting insert when it is bent, as the shank support area is heated to generate creep. In order to understand the different shank material on the cutting temperature and tool durability effects, the following study. The test was carried out with a lathe tool that mechanically hardened T15K6 carbide inserts with the geometrical angles φ = 45 °, γ = 7 °, α = 7 ° and λ = 0 °. In order to establish the comparison conditions for the physical-mechanical properties of the cutting insert, the inserts were screened for the size of the thermoelectromotive force prior to testing.