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YOKOYAMA KOGYO CO LTD Company Information
YOKOYAMA KOGYO CO LTD Automotive
Automotive
Automotive Business
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Automotive Department Overview
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Stamping Processing
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Welding/Assembly Processes
Product Profiles
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Equipment Overview
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Quality Policy
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Environmental Policy

Product Profiles

Stamping

Progressive die stamping part

BKT
Product nameBKT
ProcessesProgressive die 600t + single die (one process)
Size110*130*120
MaterialSPCC
Notes 120mm-deep drawing
Incorporates cutting into the stamping process to cut costs significantly.

Progressive die stamping part

Seat side frame
Product nameSeat side frame
ProcessesProgressive die 600t
Size345*85*45
Material100kg high tensile strength steel
Notes Since beginning production in 2005, we have successfully delivered four 100kg high tensile strength units.

Progressive die stamping part

Conveni-Hook BKT
Product nameConveni-Hook BKT
ProcessesProgressive die 300t
Size150*110*50
MaterialSPC270F
Notes 50mm drawing
Products are processed in the 300ton-class with a 50mm draw and a 60mm bend.

Progressive die stamping part

Arm reclining adjuster
Product nameArm reclining adjuster
ProcessesProgressive die 300t, heat-treated
Size190*85*4
MaterialS28C-B-A
Notes Thickness t=4.0mm
Supports heat treatment.

Progressive die stamping part

Door trim BKT
Product nameDoor trim BKT
ProcessesProgressive die 200t
Size65*33*25
MaterialSPCC
Notes Allows for complicated stamping with type 1 progressive die systems.

Pipe square formation

Connecting pipe
Product nameConnecting pipe
ProcessesCutting, square-forming press
Size10*10*46.5
MaterialSTKM15A
Notes Squares the ends of round pipes.
Forms a 10 * 10mm square from a φ12mm configuration.
Tolerance: vertical/horizontal = +-0.1

Guide roller

Seat guide roller
Product nameSeat guide roller
ProcessesProgressive die 300t
Size75*30*30
MaterialSPCC
Notes Incorporates and forms rollers (balls) into the stamping process.

Welding

Seat frame

Third row seat back frame
Product nameThird row seat back frame
ProcessesArc welding, press caulking, pipe square formation (stamping), spot welding (nut SP, sheet SP)
Size560*450*110
Notes Uses connecting pipes and round reclining.

Seat frame

Second row seat leg
Product nameSecond row seat leg
ProcessesArc welding, rotary caulking, spot welding (nut SP, sheet SP)
Size670*610*140
Notes Error prevention system for product removal provides product quality assurance.

Seat frame

Second row seat armrest
Product nameSecond row seat armrest
ProcessesArc welding, rotary caulking, spot welding, cationic coating
Size570*320*190
Notes Missing parts checker provides product quality assurance.

Seat frame

Second row seat footrest
Product nameSecond row seat footrest
ProcessesArc welding, cationic part coating, coil spring processing, damper installation
Size530*340*125
Notes Error prevention system for product removal provides product quality assurance.

Mechanical part

Reclining lever S/A
Product nameReclining lever S/A
ProcessesArc welding, rotary caulking, spot welding
Size320*170*90
Notes Helps to achieve a unified, comprehensive production system that covers the entire process from stamped part procurement through to assembly.

Mechanical part

Seat lifter sector gear
Product nameSeat lifter sector gear
ProcessesRotary caulking
Size210*80*15
Notes Height detector prevents caulking errors to provide product quality assurance.

Standalone part

ISO anchor bar
Product nameISO anchor bar
ProcessesArc welding, rotary caulking, spot welding (nut/bolt SP), cationic coating
Size910*400*180
Notes Keeps distortion/warping that develops during pipe welding within tolerance.
Missing parts/accuracy checker provides product quality assurance.

Standalone part

Partition
Product namePartition
ProcessesArc welding
Size880*150*80
Notes Keeps distortion/warping that develops during pipe welding within tolerance.
Missing parts checker provides product quality assurance.
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