HOLLOW PISTON

摘要

Disclosed are hollow pistons made from a single piece of starting material and methods of manufacturing hollow pistons from the single piece of starting material.

主权项

1. A computer-implemented method for manufacturing unitary hollow pistons comprising:
(a) receiving instructions to concurrently manufacture, from a single solid rod, two unitary hollow pistons linked by a connecting strip; and (b) performing, according to the instructions, the steps of:
(i) cutting, one or more notches mid-span along the solid rod to produce a notched rod;(ii) heating the notched rod;(iii) pressing opposing ends of the notched rod to produce hollow cylindrical bodies;(iv) folding an outer portion of each hollow cylindrical body inward to produce the two unitary hollow pistons linked by the connecting strip; and(v) separating the hollow pistons from one another.