公开(公告)号：US20230356329A1

公开(公告)日：2023-11-09

申请号：US17893049

申请日：2022-08-22

Applicant: Purdue Research Foundation

Inventor： Yung Shin ,  Corbin Grohol

IPC: B23K26/342 ,  C22F1/00 ,  C22F1/04 ,  B23K26/14

CPC classification number: B23K26/342 ,  C22F1/002 ,  C22F1/04 ,  B23K26/1464

Abstract: Methods of enhancing surface hardness of a quench-sensitive age-hardening material, such as an aluminum alloy, with cryogenic quenching, aluminum alloys produced by the methods, and a laser cladding system with cryogenic quenching capability. Laser cladding or other heat treatment of a quench-sensitive age-hardening material, such as an aluminum alloy, is combined with in-situ cryogenic quenching of the heated area with a spray of cryogenic fluid as the material cools down from the cladding or other heat treatment. The laser cladding system has both a laser emitter to heat a workpiece and a cryogenic nozzle to deliver a cryogenic fluid spray onto the workpiece. The resulting material may have a surface hardness higher than can be achieved without the quenching spray, often approaching or exceeding a T6 temper, without using a solution heat treatment.

公开(公告)号：US12233479B2

公开(公告)日：2025-02-25

申请号：US17893049

申请日：2022-08-22

Applicant: Purdue Research Foundation

Inventor： Yung Shin ,  Corbin Grohol

IPC: B23K26/342 ,  B23K26/14 ,  C22F1/00 ,  C22F1/04

Abstract: Methods of enhancing surface hardness of a quench-sensitive age-hardening material, such as an aluminum alloy, with cryogenic quenching, aluminum alloys produced by the methods, and a laser cladding system with cryogenic quenching capability. Laser cladding or other heat treatment of a quench-sensitive age-hardening material, such as an aluminum alloy, is combined with in-situ cryogenic quenching of the heated area with a spray of cryogenic fluid as the material cools down from the cladding or other heat treatment. The laser cladding system has both a laser emitter to heat a workpiece and a cryogenic nozzle to deliver a cryogenic fluid spray onto the workpiece. The resulting material may have a surface hardness higher than can be achieved without the quenching spray, often approaching or exceeding a T6 temper, without using a solution heat treatment.