Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberUS3570740 A
Publication typeGrant
Publication dateMar 16, 1971
Filing dateAug 16, 1968
Priority dateAug 16, 1968
Also published asDE1935393A1, DE1935393C2
Publication numberUS 3570740 A, US 3570740A, US-A-3570740, US3570740 A, US3570740A
InventorsStamm Alex F
Original AssigneeRockwell Standard Co
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for friction welding
US 3570740 A
Images(21)
Previous page
Next page
Description  (OCR text may contain errors)

United States Patent Inventor Alex F. Stamm Rochester, Mich.

Appl. No. 753,214

Filed Aug. 16, 1968 Patented Mar. 16, 1971 Assignee Rockwell-Standard Company Pittsburgh, Pa.

APPARATUS FOR FRICTION WELDING Primary Examiner-John F. Campbell Assistant ExaminerRobert J. Craig Attorneys.lohn R. Bronaugh and George R. Powers ABSTRACT: A friction welding apparatus and method wherein workpieces such as the center section and wheel bearing end spindles of a vehicle axle housing are frictionally welded together by rotating the end spindles and axially accelerating the rotating end spindles towards opposite ends of the center section, decelerating the advancing end spindles as they approach the center section so that they gently contact the center section, abruptly and materially increasing the axial thrust urging the rotating end spindles against the center section immediately upon contact, then gradually increasing the axial thrust applied to the rotating end spindles from the abruptly increased thrust level, stopping rotation of the end spindles, and abruptly increasing the axial thrust again to a much higher level and holding the axial engagement pressure at this last level until the welds, which are formed when the end spindles stop rotating, have cooled. A control and sequencing circuit provides for the automatic welding of the end spindles to the center section either simultaneously or sequentially.

"CLEARANCE PATENTEMmsmn 3570.740

sum 01 or 21 v INVENTOR. ALEX F. STAMM AT TOR/VF Y5 PATENTEDHARIBISYI v3570.740

saw 02 [1F 21 PATENTED MR1 slam SHEET 03 [1F mmvron. ALEX F. STA/WM ATTORNEYS PATENTEDHARISISYI 3 570 740 SHEET on a;

ATTORNE s SHEET 08 [1F 21 PATENTED MARI 6 I97! INVENTOR ALEXESTAMM' dl wu, Z a/ I I I I I l I l I I ,l SI

FII

J8 VA I J8 ATTORNEYS PATENIEU MARI 6197i SHEET 07 [1F 21 mum mmw

mm ONm mm mwm ALEX ESTAMM Q/Mmm 4w Nmm Qm PATENTEUHARTBIQ?! 3.570.740

SHEET 3 1 21 r TER l-EATER ON MASTER CONTROL ASTER CONTROL ON.

EMERGENCY RESET SPINDLE MOTOR .SPINDLE MOTOR L BEARING MOTOR 202 MOTOR 246 ORB-4 CENTER ENDS CENTER P CENTER ENDS ENDS PRESSURE TO CENTER CLAMPS CYCLE E ON OIL BEARING FWD. OR TRAVEL R.H. FWD. OR REV. TRAVEL TRAVEL DELA Y INVENTOR ALEX E STA/WM Qua ATTORNEYS m mm 5 SHEET L, 0F 2] CRMA-5 CRMA m M STER CRMA- 3 EPINDL PRESET SPINDLE PRESET Y RAUL.

CIRCUIT MOTOR STARTER L BIRG.

HYDRA CIRCUIT TOR 5mm" ER Bums STUP

R. H. OIL BRG,

' ToR I 4 ALEX sTAMM TTORNEYS 7 PATENTEU MAR 1 6 I97! CRA 28-1 SHEET EMERGENCY CLAMPENDS 'CLAMP ENTER UNCLAMF CENTER UNCLAMP ENDS START CYCLE 02%. T0 BEARINGS LEFT TRAVEL FWD. OR REV.

LEFT JOG GANGED TO SWITCH 926 a m I FWD.

CRAIG-4 INVENTOR.

ALEX F STAMM WMM42 W ATTORNEYS PATENTED MARI 6 N11 SHEE 15 UF 2] CRAG-iz CRAl0 q::1 v "rr'r e (M326 w R H JO FWD Elk J4 ism-EMU; g RH. JOG RET. cRAIQ-I 2 l l q E w RUNNING w i TIME PSIA PSIB l l M cRAn YE- .l E BRAKE HOLDOFIF MOTOR STAR'I'ING RELAY NETWORK SP'NDLE cRsAl-z ass cRsAz-z e37 -R ELAY mfi H SP'NDLE CRAl9-2 CRA 20-3 CRAB-3 TDA2 CRAI4 RELEASE BRAKE SEQUENCE ACTUATOR CYCLE CROSS OVER TIMER CYCLE CROSS CNER 1N VEN TOR.

ALEX F STAMM dwmm wm ATTORNEYS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US3238612 *Mar 5, 1964Mar 8, 1966American Mach & FoundryFriction welding
US3417457 *Aug 30, 1962Dec 24, 1968Caterpillar Tractor CoWelding method and apparatus
US3484926 *Feb 19, 1968Dec 23, 1969Caterpillar Tractor CoFriction welding
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3896985 *Oct 25, 1972Jul 29, 1975Production Technology IncIndexing apparatus for rotary machine tool
US5699952 *Jun 6, 1995Dec 23, 1997The Fusion Bonding CorporationAutomated fusion bonding apparatus
US6910616Mar 7, 2002Jun 28, 2005The Boeing CompanyPreforms for forming machined structural assemblies
Classifications
U.S. Classification228/2.3, 156/73.5, 228/8
International ClassificationB23K20/12
Cooperative ClassificationB23K20/121
European ClassificationB23K20/12C