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DEVICE FOR FORGING INTERMEDIATE COMPONENT OF METAL VALVE BODY, AND METHOD FOR FORGING METAL VALVE BODY COMPONENT
DEVICE FOR FORGING INTERMEDIATE COMPONENT OF METAL VALVE BODY, AND METHOD FOR FORGING METAL VALVE BODY COMPONENT
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机译:金属阀体中间成分的锻造装置及金属阀体成分的锻造方法
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摘要
PROBLEM TO BE SOLVED: To provide a forging method for reducing the cutting load of a metal valve body, and preventing breakage of a punch.;SOLUTION: The metal valve body component forging method comprises a step of throwing a material 12 in a cavity of a die forming the outline shape of a metal valve body component, a step of inserting a first punch 3 and a second punch 5 integrated with punches 4 and 6 for forming a flow passage facing the material opposite to each other, forming a hole for connection, and filling a material in the cavity, and a step of inserting the punches 4 and 6 for forming the flow passage toward the material 12 after filling the material in the cavity. The volume of the portion of the punches 4 and 6 for forming the flow passage inserted in the material is compensated by the volume of a retracted remaining portion of the first punch 3 and/or the second punch 5.;COPYRIGHT: (C)2003,JPO
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