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日本工具制作所研制的粗加工重切削用立铣刀已作为商品投入市场.刀齿直径为6—18毫米,加工效率比原有产品提高3—5倍.15毫米以下的小直径封闭式螺旋刃立铣刀也是该制作所最早投放市场。这种立铣刀过去以15—50毫米的大直径类型的产品为主.由于放电加工和线切割等加工方法的普及,在粗加工或精加工中常用的立铣刀,越是大直径类型的产品就越不能灵活运用,而且并未从加工技术和成本角
Rough cutting heavy cutting end mills developed by Japan Tooling Manufacturing Co., Ltd. have been put on the market as commercial products. The cutter diameter is 6-18 mm and the processing efficiency is 3-5 times higher than that of the original product. The small diameter closed spiral below 15 mm Blade cutter is also the earliest placement of the market. This type of end mills used to be mainly 15-50 mm large diameter type products.Due to the popularity of machining methods such as electric discharge machining and wire cutting, the end mills commonly used in roughing or finishing, the larger the diameter type The less flexible the product can be and the more it has not come from the processing technology and cost perspective