T-joint manufacturing apparatus

Metal deforming – With temperature modification of tool or of specified... – Cooling

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

29157T, B21D 3716

Patent

active

046760881

ABSTRACT:
This invention relates to an apparatus for manufacturing a T-joint, which consists of a tube portion and a collar portion, by using burring techniques. The apparatus is provided with a high-frequency induction heating unit for heating the circumferential portion of a pilot hole made in a tube, a cooling ring for ejecting a coolant to the circumferential portion of the pilot hole, and a temperature distribution control for controlling the heating rate of the heating unit and the coolant ejection rate of the cooling ring. The apparatus thus constructed enables the working temperature of the parts of the circumferential portion of the pilot hole in the plane of which includes the axes of the tube and the collar to be lower than that of the parts of the circumferential portion in the plane extending at right angle to the above-mentioned plane. Therefore, this apparatus can be used effectively to manufacture a T-joint of which the thicknes of the collar portion is substantially uniform in the circumferential direction of the circumferential portion of the pilot hole.

REFERENCES:
patent: 354879 (1886-12-01), Youngs
patent: 1891338 (1932-12-01), Snell
patent: 2227476 (1941-01-01), Williams et al.
patent: 3368377 (1968-02-01), Hirayama et al.
patent: 3815395 (1974-06-01), Sass
patent: 3910094 (1975-10-01), Luttgert et al.
patent: 4254649 (1981-03-01), Cervenka et al.
patent: 4414833 (1983-11-01), Nicolas et al.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

T-joint manufacturing apparatus does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with T-joint manufacturing apparatus, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and T-joint manufacturing apparatus will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-440893

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.