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  • 期刊

硬質合金鎢鋼模具之加工製造技術開發

Development of Processing and Manufacturing Technology for Tungsten Carbide Molds

摘要


鎢鋼模具,具有硬度高、耐蝕佳、耐高溫、耐衝擊、膨脹係數小及壽命高等優點,廣泛被應用於電子、汽機車、機械五金、民生電器、航太等領域的沖壓與金屬粉末壓製模具製作上。而集許多應用優點於一身的鎢鋼模具,卻因為硬度高的特性,導致在生產加工製作上困難重重。本研究提出有別於傳統使用鑽石磨棒研磨與放電加工(EDM)的方式,採用具有高加工效率的電解磨削製程搭配具高加工精度與表面品質的聚晶鑽石(PCD)刀具直銑製程,來改善現有鎢鋼模具加工效率不佳、電極/刀具耗損造成成本提高、模具表面殘留應力及大量依賴人工後續拋光的問題瓶頸。

並列摘要


Tungsten carbide molds have the advantages of high hardness, good corrosion resistance, high temperature resistance, impact resistance, small thermal expansion coefficient and long life. And are often widely used in the production of stamping and metal powder pressing molds in the fields of electronics, automobiles, mechanical hardware, household appliances, and aerospace. Tungsten steel molds, which combine many application advantages, are difficult to produce and process due to their high hardness. This research proposes a method different from the traditional use of diamond rod grinding and electrical discharge machining (EDM). In this article, the electrochemical grinding (ECG) process with high processing efficiency and the direct milling process with polycrystalline diamond (PCD) tools with high processing accuracy and high surface quality are used to improve the bottleneck of existing tungsten carbide mold processing efficiency, increased costs caused by electrode/tool wear, residual stress on the mold surface, and heavy reliance on manual polishing.

參考文獻


梁宏瑋, “ 電化學加工方法研磨加工碳化鎢材料表面氧化層之參數分析 ”, 碩士論文,國立中央大學機械工程學系,2017 年。
范植堅、楊森、唐霖, “ 電解加工技術的應用和發展 ”, 西安工業大學學報, 32(10),775-784,2012 年。
敖太平、張恕遠、左施施、冉林、吳攀、鄧勇,“ 外圓電解磨削工藝參數研究 ”,中國機械工程學會期刊,47(11),116-118,2019 年。
盧高峰、吳強、許慶平、吳國興, “ 剪毛刀片齒形電解機械複合磨削設備研製 ”,電加工與模具,2,39-41,2018 年。
K. Nakamoto, K. Katahira, H. Ohmori, K. Yamazaki, and T. Aoyama, “A study on the quality of micro-machined surfaces on tungsten carbide generated by PCD micro end-milling,” CIRP Annals, 61(1), 567-570, 2012.

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