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US 10,612,109 B2Granted
Method of relieving stress from face plate welds of a golf club head
AssigneeKarsten Manufacturing Corporation
InventorsMatthew W. Simone, Travis D. Milleman, Martin R. Jertson
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to methods for forming a golf club head assembly using a combination of different, but separate heat treatments for the golf club head body and high strength faceplate, and vibrational waves to relive stress in the weld heat affected zones of the golf club body and face.
Claims20
A method of forming a golf club head assembly, the method comprising
- (a) providing a club head body formed from a first material;
- (b) providing a hosel portion formed from a second material;
- (c) heating the club head body under a first heat treatment for a predetermined amount of time;
- (d) heating the hosel portion under a second heat treatment after the first heat treatment of the club head body in step (c), wherein the second heat treatment is different than the first heat treatment, wherein the hosel portion is heated separately from the club head body to a temperature that is greater than a solvus temperature of the hosel portion for a predetermined amount of time;
- (e) after heating the club head body from step (c) and the hosel portion from step (d), allowing the club head body and hosel portion to cool in an inert gas environment;
- (f) aligning the hosel portion of step (b) with the club head body of step (a) after heating steps (c) and (d), and cooling step (e);
- (g) welding the hosel portion to the club head body to form a heat affected zone (HAZ) between the hosel portion and the club head body to form the golf club head assembly after step (f);
- and
- (h) relieving the stress of the HAZ of the golf club head assembly with vibrational waves.
6 more elements
A method of forming an iron type golf club head assembly, the method comprising
- (a) providing a welded portion formed from a first material, wherein the welded portion comprises at least one member selected from the group consisting of:
- a faceplate, a front portion, a back portion, a lower back portion, a bottom portion, and a hosel portion,
- (b) providing a club head body formed from a second material, wherein the first material is different than the second material,
- (c) heating the welded portion under a first heat treatment, wherein the welded portion is heated to a temperature that is greater than a solution temperature of the welded portion for a predetermined amount of time;
- (d) heating the club head body under a second heat treatment after the first heat treatment of the club head body in step (c), wherein the second heat treatment is different than the first heat treatment, wherein the club head body is heated separately from the club head body to a predetermined temperature for a predetermined amount of time,
- (e) after heating the welded portion from step (c) and the club head body from step (d), allowing the welded portion and club head body to cool in an inert gas environment;
- (f) aligning the welded portion of step (a) with the club head body of step (b) after heating steps (c) and (d), and cooling step (e);
- (g) welding the welded portion to the club head body to form a heat affected zone (HAZ) between the welded portion and the club head body to form the iron type golf club head assembly after step (f);
- and
- (h) relieving the stress of the HAZ of the golf club head assembly with vibrational waves.
7 more elements
Dependencies are inferred from the claim text.