| 摘要 |
<p>A cam element has a body on which is formed a working surface 66, in which the body, as manufactured, has applied to it a coating, other than in the region of the working surface. The coating may be a protective coating, and may be applied to the body in a manufacturing step that includes anodisation. An operation may be performed on the body to form a working surface, thereby removing the coating in the region of the surface, such as by machining, abrading, or blasting. A method of making a cam element may include applying a resist or a mask to the working surface. A stem (12, figure 2) may be connected to a head, the stem having a first and a second portion, an end part of the first portion being secured to the head, and the second portion having two branches that are secured to a common termination component (50, figure 2) at spaced-apart locations.</p> |
