Surface Quality after Broaching with Variable Cutting Thickness
Surface Quality after Broaching with Variable Cutting Thickness
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DOI：
10.1016/j.procir.2014.04.020
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
F. Zanger;N. Boev;V. Schulze
中科院分区：
文献类型：
--
作者：
F. Zanger;N. Boev;V. Schulze
在加工过程中，将生成新曲面。根据加工工艺的不同，会产生不同质量的表面。在拉削之后，期望高的表面质量。然而，质量可能受到机器结构的振动的影响，这导致变化的切削厚度，从而导致低的表面质量。在加工过程中的变化切削厚度的影响进行了实验研究和模拟。切削厚度的动态变化被视为未切削表面上的几何轮廓。在实验过程中测量的过程中的力量和粗糙度之前和之后的拉削与一个齿进行了评估。在工件表面的残余应力进行了模拟与已经验证的正交加工模型，使用一个自我实现的重新网格化方法。
During machining, new surfaces are generated. Depending on the machining process, different qualities of surfaces are produced. After broaching, a high surface quality is expected. However, the quality can be influenced by vibrations of the machine structure which leads to varying cutting thicknesses and thus to low surface qualities. The influence of variable cutting thicknesses during machining was investigated experimentally and by means of simulations. Dynamic changes in cutting thickness were considered as geometrical profiles on the uncut surfaces. Process forces were measured during the experiments and the roughness before and after broaching with one tooth was evaluated. The residual stresses in the workpiece surfaces were simulated with an already validated model of orthogonal machining using a self-implemented re-meshing method.