| 摘要 |
A no-draft putter club head is formed using an investment casting process, wherein one or more critical surfaces of the club head - i.e., surfaces with contour s that affect the visual appearance of the club head when viewed from above - are formed substantially parallel to the draw direction of the mold. The mold includes an internal cavity corresponding to a putter club head shape, wherein the cavity includes a set of surfaces substantially parallel to the draw direction of the mold. This set of surfac es may include, for example, a toe surface, a heel surface, a top rail surface, and/or a hosel surface. A wax material is suitably poured or injected into the mold cavity to form a wax replica of the putter club head shape. The wax replica is then removed from the mold cavity along a line parallel to the draw direction. |
