公开(公告)号：US3798748A

公开(公告)日：1974-03-26

申请号：US29372672

申请日：1972-09-29

Applicant: NASA

Inventor： HOLKO K

IPC: B23K20/233 ,  B23K31/02

CPC classification number: B23K20/233

Abstract: Dispersion-strengthened nickel alloys are sanded on one side and chemically polished. This is followed by a single-step welding process wherein the polished surfaces are forced into intimate contact at 1,400* F for one hour in a vacuum. Diffusion, recrystallization, and grain growth across the original weld interface are obtained during postheating at 2,150* F for two hours in hydrogen.

Abstract translation: 分散强化的镍合金在一侧磨砂并进行化学抛光。 之后是单步焊接工艺，其中抛光表面在真空中被迫在1400°F紧密接触1小时。 在氢气中在2150°F后加热2小时，得到原始焊接界面的扩散，重结晶和晶粒生长。

公开(公告)号：US3787959A

公开(公告)日：1974-01-29

申请号：US3787959D

申请日：1972-04-24

Applicant: NASA

Inventor： MOORE T ,  HOLKO K

IPC: B23K28/00 ,  B23K31/02

CPC classification number: B23K28/003

Abstract: Solid state welding a butt joint by fusion welding the peripheral surfaces to form a seal, autogenetically cleaning the faying or mating surfaces of the joint by heating the abutting surfaces to 1,200*C., and heating to the diffusion welding temperature in air.

Abstract translation: 固态焊接对接接头，通过熔接外围表面形成密封，通过将邻接面加热到1200℃，并加热到空气中的扩散焊接温度，自发地清洗接头的接合表面。

公开(公告)号：US3758741A

公开(公告)日：1973-09-11

申请号：US3758741D

申请日：1972-09-14

Applicant: NASA

Inventor： HOLKO K ,  MOORE T

IPC: B23K20/00 ,  B23K19/00

CPC classification number: B23K20/00

Abstract: Surfaces of unrecrystallized alloys are sanded and polished. This is followed by a two-step welding process wherein the strength of the parent metal is retained at the weld joint. The first step forces the surfaces into intimate contact at a temperature where the metal still has good ductility. The second step causes diffusion, rerystallization, and grain growth across the original weld interface.

公开(公告)号：US3770933A

公开(公告)日：1973-11-06

申请号：US3770933D

申请日：1972-04-24

Applicant: NASA

Inventor： HOLKO K ,  MOORE T

IPC: B23K11/00 ,  F01D5/30 ,  B23K11/04

CPC classification number: B23K11/002 ,  B23K2201/001 ,  F01D5/3061

Abstract: Using magnetic force upset welding to form T-joints between dissimilar thickness parts. This type of resistance welding is used to join compressor and turbine parts thereby reducing the weight and cost of a jet engine.

Abstract translation: 使用磁力镦锻焊接形成不同厚度部件之间的T型接头。 这种电阻焊接用于连接压缩机和涡轮机部件，从而降低喷气发动机的重量和成本。

公开(公告)号：US3745300A

公开(公告)日：1973-07-10

申请号：US3745300D

申请日：1971-04-16

Applicant: NASA

Inventor： HOLKO K ,  MOORE T

IPC: B23K11/00 ,  B23K11/04

CPC classification number: B23K11/002 ,  B23K2201/001

Abstract: USING MAGNETIC FORCE UPSET WELDING TO FORM T-JOINTS BETWEEN DISSIMILAR THICKNESS PARTS. THIS TYPE OF RESISTANCE WELDING IS USED TO JOIN COMPRESSOR AND TURBINE PARTS THEREBY REDUCING THE WEIGHT AND COST OF A JET ENGINE.