Country:China>Henan>Zhengzhou, Henan, China
No.171 Zhongyuan Rd, Zhongyuan District, Zhengzhou, Henan
Company:more superhard
Mobile:13783416756
Tell86-371-86545906
Tool wear is the most important problem in graphite electrode machining. The wear quantity not only affects the tool wear cost, machining time, machining quality, but also affects the surface quality of the workpiece material processed by electrode EDM. It is an important parameter for optimizing high-speed machining. The main tool wear area of graphite electrode material processing is the front surface and the back surface. On the front cutter face, the impact contact between the tool and the broken cutting zone produces impact abrasive wear, and the sliding friction and wear along the tool surface is dominant. The tool material is the fundamental factor that determines the cutting performance of the tool, which has a great influence on the machining efficiency, machining quality, machining cost and tool durability. The harder the tool material, the better its wear resistance, the higher the hardness, the lower the impact toughness, the more brittle the material. Hardness and toughness are contradictory, and it is also a key problem to be solved in cutting tool materials. For graphite cutting tools, ordinary Tiain coating can be appropriately selected in the material toughness is relatively good, that is, the cobalt content is slightly higher; For diamond coated graphite cutting tools, the appropriate choice of material hardness is relatively high, that is, the content of cobalt is low. Tool geometry Angle Graphite special tool to choose the right geometric Angle, help to reduce the vibration of the tool, in turn, graphite workpiece is not easy to collapse. Anterior horn When the graphite are processed using the negative rake Angle, cutting tool edge strength, good resistance to impact and friction performance, with the decrease of the absolute value of negative rake Angle, the blade wear area changed little, but overall showed a trend of decrease, with positive rake Angle processing, along with the rising of the rake Angle, cutting tool edge strength is w
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