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美国汽车行业近年来对聚晶金刚石刀具的使用不断增多,效益也日益明显。下面介绍一些零星的实用情况。美国脱来斯达公司加工用强化塑料制造的活塞时,使用了聚晶金刚石刀具后,较之使用硬质合金刀具,每年可节约3万美元。硬质合金刀具重磨一次可加工350个活塞,而聚晶金刚石刀具重磨前可加工15000个,重磨后又可加工15000个,而且可重磨6次。在拉撤尔公司的共有21个工位的生产自动线上,也有多处可利用这种刀具。例如在第5道工序上,用A、B、C三把刀具进行粗加工;在第9道工序上,进行环形槽和端面加工;在第17道工序上进行主轴外圆加工等,都使用金刚石刀具。在第17道工序的精加工中,使用硬质合金刀具时,磨损剧烈,有20—25%的
The use of polycrystalline diamond tools in the U.S. automotive industry has been increasing in recent years, with increasingly obvious benefits. Here are some scattered practical situation. When the United States took off a piston made of reinforced plastic and processed polycrystalline diamond tools, Starburst can save 30,000 U.S. dollars per year compared with using cemented carbide tools. The heavy-duty carbide tool can process up to 350 pistons at a time, while the polycrystalline diamond tool can process up to 15,000 before it is refurbished, 15,000 after refinishing, and can be resharpened six times. There are also a number of tools available at Lazare’s 21-station automatic production line. For example, in the fifth process, three tools A, B, and C are used for roughing. In the ninth process, the annular groove and the end face machining are performed. In the 17th process, the outer machining of the spindle is performed Diamond cutter. In the finishing of the 17th process, when using a carbide tool, the wear is severe with 20-25% of the