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OwnerMotoshiro Hirato, Hazime Kawagoe +6inventors
InventorsMotoshiro Hirato, Hazime Kawagoe, Kazuo Abe, Tsuyoshi Sato, Yasuhiko Miyake, Masahiro Nagai, Katsuhisa Furuichi, Kiyoshi Shimojima
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A rod in the form of a composite metal wire having a harder metal core surrounded by a softer metal cladding is introduced together with lubricant into a die comprising an approach which includes a first frustoconical opening defining a vertical angle between 0.degree. and 5.degree. (exclusive of 0.degree.) and a second frustoconical opening defining a vertical angle between 6.degree. and 20.degree.. The lubricant is pressurized in the first frustoconical opening of the die approach while the rod is drawn under fluid lubrication.
A process for the fluid lubrication drawing of a rod in the form of a composite metal wire consisting of a harder metal core and a softer metal cladding surrounding the core comprising the steps of:
An apparatus for the fluid lubrication drawing of a rod in the form of a composite metal wire comprising a die having an approach which includes a first frustoconical opening having an included angle between 0.degree. and 5.degree. (exclusive of 0.degree.) and a succeeding second frustoconical opening having an included angle between 6.degree. and 20.degree..
Dependencies are inferred from the claim text.