纯铜散热片的高速切削技术研究

Study on the Technology of High Speed Cutting of Pure Copper Heat Sink

阐述了现阶段纯铜散热片的主要加工方法,并指出了传统的挤压、焊接、铸造等加工方法中存在的问题及弊端,针对纯铜散热片材料塑性大、鳍片深度大、壁厚薄、装夹困难,加工中易产生振动和变形的工艺特点及生产实际需求,提出了一种高速切削技术在此类产品加工中的有效应用技术。从纯铜散热片的加工效率、加工精度等角度出发,探讨了纯铜散热片高速切削的效率和加工精度的影响因素,分析纯铜散热片高速切削加工的优势和可行性,并对高速切削加工中存在的工艺问题进行了分析,给出了具体的解决措施。制定了对于此类产品进行高速切削加工的工艺,完成了夹具的设计造型,刀具材料及参数的选择,切削用量的计算确定等工作。

This paper expounds the main processing method of pure copper heat sink at the present stage, and points out the problems and defects existing in the traditional extrusion, welding, casting and processing method. Aiming at the large depth, wall thickness, difficult clamping, big plastic, easy to produce vibration and deformation characteristics of the process and actual production requirement for copper heat sink materials, the paper puts forward the effective application of technology for high speed cutting technology in the processing of such products. From the point of view of the machining efficiency, machining precision, the paper discusses the factors affecting the copper heat sink of high speed cutting efficiency and machining precision, and analyses advantage and feasibility of high speed cutting copper heat sink. Finally, the technology problems in high speed machining are analyzed, the paper gives the concrete measures. At the same time, this paper drew up a process of high speed machining for such products, Completed the design of the fixture, selected cutting tool material and the parameter and confirmed the cutting specifications etc.