Drawing process for titanium

摘要

A cold drawing process for forming titanium blanks into titanium pieces in which the titanium blank is pre-treated with a wet lubricant prior to drawing. The wet lubricant lubricates the interfaces of the titanium blank and the punch to substantially reduce galling and hardening of the surface of the titanium blank from the drawing process, thereby eliminating the need to anneal the formed titanium pieces prior to additional drawing, stamping, punching or other forming processes.

主权项

1. A method of forming generally planar titanium blanks into formed titanium pieces comprising:
providing a first die assembly comprising a first die defining a first recessed cavity and a first punch movable along a first linear path intersecting the first recessed cavity; providing a generally planar titanium blank having at least one roughened face; applying a wet lubricant to the roughened face of the titanium blank; positioning the titanium blank on the first die such that a portion of the titanium blank is aligned with the first recessed cavity of the first die; moving the first punch along the first linear path to engage the lubricated roughened face of the titanium blank and deform the aligned portion of the titanium blank into the first recessed cavity of the first die; providing a second die assembly comprising a second die defining a second recessed cavity and a second punch movable along a second linear path intersecting the second recessed cavity; applying additional wet lubricant to the roughened face of the formed titanium piece; positioning the formed titanium piece on the second die such that deformed portion of the titanium blank is received within the second recessed cavity of the second die; and moving the second punch along the second linear path to engage the lubricated roughened face of the titanium blank and elongate the deformed portion of the titanium blank.