| 摘要 |
<p>In the manufacture of large metal wood golf club head (10), there is added to all walls (15-18) of a designed head body (11) an additional amount (t) of wall thickness sufficient to enable the thinnest of the thickened walls to be cast reliably and efficiently. That further wall thickness is added equally to the inner and outer surfaces of the head body. That thickened wall head body is then cast (35) and preliminarily dressed (36, 37). The amount by which the weight of the designed body is determined by weighing (38) the dressed body, and from that weight is deducted such weight as can be expected to be removed by further grinding and polishing (40, 41) of the head body. The result is a defined amount of weight to be removed from the head. That defined weight of metal is removed from all, or substantially all, of the surfaces of the dressed casting by chemically milling (39) those surfaces to move the added thickness of metal from the surfaces to which it was added. A readily manufacturable golf club head of the correct weight and wall thickness is thereby produced.</p> |
