Golf club head and a method of manufacture

专利名称：Golf club head and a method of

manufacture

发明人：David P. Billings,Tom Stites,Charlie C. Chen申请号：US10350446申请日：20030124

公开号：US20040147343A1公开日：20040729

专利附图：

摘要：Disclosed is a metal golf club head with optimum macro- and micro-structuresand properties and a method for manufacturing a metal golf club head. The methodcomprises forging precisely a metal billet at a temperature between 35-47% of the

melting temperature into a net or near-net lower portion shape comprising a faceportion, a hosel portion, and an integrated sole and wall portion. The forging process ispreferably performed in at least two stages, with the top stage forging a pre-form shapeapproximately equal to 60-80% of the final shape. The second stage of the forgingprocess results in the net or near-net shape with only localized conditioning by machiningor grinding. A crown portion is manufactured by stamping or forging, and then welded tothe lower portion to form the metal golf club head.

申请人：BILLINGS DAVID P.,STITES TOM,CHEN CHARLIE C.

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