Metal deforming – By use of roller or roller-like tool-element – With tool inside hollow work
Patent
1976-07-06
1977-07-12
Combs, E. M.
Metal deforming
By use of roller or roller-like tool-element
With tool inside hollow work
72370, 75122, 75171, B21B 1710
Patent
active
040345882
ABSTRACT:
A method is provided for piercing and enlarging metal members at high temperatures, particularly members containing slag inclusion, by the steps of urging said member, over a piercer or enlarger point by rolling whereby said point passes through and forms an axial opening in the ingot, said point being formed of an alloy comprising 0.015% to 2% carbon, about 5% to 65% cobalt, about 15% to 35% chromium and up to about 30% iron and amounts of boron, nickel, silicon molybdenum, vanadium, aluminum, tantalum, tungsten, titanium, copper and columbium for imparting the qualities generally associated therewith without detrimentally affecting the hot hardness and resistance to erosion of said alloy at said elevated temperature.
REFERENCES:
patent: 1903952 (1933-04-01), Wissler
patent: 2126750 (1938-08-01), De Golyer
patent: 2197098 (1940-04-01), Davis et al.
patent: 2263020 (1941-11-01), Trantin
patent: 2799003 (1957-07-01), Nowak
patent: 3962897 (1976-06-01), Way et al.
Van Nostrand's Scientific Encyclopedia, 1945 Edition, p. 47.
Metals Handbook, 1948 Edition, p. 63.
Way Lewis A.
Williams Robert C.
Buell Eugene F.
Columbiana Foundry Company
Combs E. M.
LandOfFree
Methods of piercing and enlarging elongate metal members such as does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods of piercing and enlarging elongate metal members such as, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods of piercing and enlarging elongate metal members such as will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-481049