Method for the production of precision shapes

Details Method for the production of precision shapes Method for the production of precision shapes

1978-08-03

1980-07-15

Hunt, Brooks H.

Specialized metallurgical processes, compositions for use therei

Compositions

Consolidated metal powder compositions

75211, 264111, B22F 500

Patent

active

042126690

ABSTRACT:
A method for producing precision shapes which includes the consolidation of powder metal preforms into a shaped porous preform. A first coating is applied to the preform, this first coating being porous while providing a diffusion barrier. A second coating which is also initially porous is then applied and the coated preform can then be degasified by subjecting the preform to a vacuum, particularly at elevated temperatures. The coated preform is then heated under vacuum to a temperature such that the second coating is densified to the extent that it becomes non-porous. Finally, the preform is subjected to a hot isostatic pressing operation whereby formation of high integrity, fully dense metal shape results.

REFERENCES:
patent: Re28301 (1975-01-01), Havel
patent: 3992200 (1976-11-01), Chandhok
patent: 4023966 (1975-11-01), Loersch
patent: 4081272 (1978-03-01), Adlerborn
patent: 4104782 (1978-08-01), Veek et al.

Affiliated with

Also associated with

Rating

Method for the production of precision shapes does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for the production of precision shapes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the production of precision shapes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-462388