Method and apparatus for coldworking holes

Details Method and apparatus for coldworking holes Method and apparatus for coldworking holes

1984-11-08

1986-07-01

Larson, Lowell A.

Metal deforming

Process

Tube making or reshaping

72393, B21D 4102

Patent

active

045972826

ABSTRACT:
A method and apparatus for coldworking of holes using a split mandrel. The apparatus uses a mandrel having radially directed slots to permit contraction of its outer diameter as it is fitted within a hole. The mandrel contains a pilot having a larger diameter extending from the mandrel. After placing the mandrel and pilot within a hole to be coldworked, the pilot is pulled into the mandrel solidifying the mandrel. The pilot and mandrel are then withdrawn through the hole, thereby coldworking the hole.

REFERENCES:
patent: 2357123 (1944-08-01), Maxwell
patent: 2480630 (1949-08-01), Brinen et al.
patent: 2508377 (1950-05-01), Doerr
patent: 2974712 (1961-03-01), Frye et al.
patent: 3566662 (1971-03-01), Champoux
patent: 4262518 (1981-04-01), Creger et al.

Affiliated with

Also associated with

Rating

Method and apparatus for coldworking holes 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 and apparatus for coldworking holes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for coldworking holes will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1076063