| 摘要 |
A method of forming A no-draft putter club head (400 Fig 4) using an investment casting process and comprises A mold 302 with an internal cavity corresponding to a putter club head shape, wherein the cavity includes a set of surfaces substantially parallel to the draw direction 108 of the mold. This set of surfaces may include, for example, a toe surface (410 Fig 4), a heel surface (412 Fig 4), a top rail surface (414 Fig 4), and/or a hosel surface (404 Fig 4). A wax material is 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. The wax material may also be poured into the mould. The method may also include the steps of immersing the wax replica into a ceramic slurry and firing the replica to form a ceramic shell mould, and then removing the wax from the mould. |
