Major Components
Machining/Assembly
History (Tools/Measurements)
Year
|
Tools/Measurements
|
|||
---|---|---|---|---|
Tool materials
|
Tools and processes
|
Tool regrinding
|
Measuring machines/gauges
|
|
1937
|
|
|
Individual grinding until 1944
|
Limit gauges until 1944
|
1945
|
|
|
Company-wide centralized grinding until 1954
|
Air micro-gauges until 1954
|
1949
|
Cemented carbide
|
|
|
|
1951
|
|
|
|
Transmission tester
|
1955
|
|
|
|
Dial gauges until 1964
|
1958
|
|
|
|
Automatic size measuring
|
1961
|
Ceramics
|
Throw-away tip
|
|
|
1962
|
|
|
|
Engine turn table
|
1963
|
|
|
|
Propeller shaft balancer
|
1964
|
|
|
|
Crankshaft balancer
|
1965
|
|
|
|
Electric micro-gauges until 1974
|
1967
|
Cermets
|
|
|
|
1970
|
PCV coating
|
Ejector drill
|
|
|
1972
|
|
1972~1978 quick-change holder
|
Plant-wide centralized grinding
|
Automatic distortion correction machine
|
Computerized tool management
|
||||
1975
|
Sintered diamond
|
|
|
Optical and electronic gauges until 1984
|
1976
|
Borazon (boron nitride) grinding stone
|
|
|
|
1978
|
Borazon sintered compact
|
|
|
|
1980
|
|
|
Regrinding by NC machine
|
|
1982
|
|
Torque sensor controlled nut runner
|
|
|
1984
|
|
|
|
Image processing equipment
|
Assembly tester with learning function
|
||||
1985
|
|
Automatic tool changer (ATC)
|
|
|
1987
|
|
ATC for bore rough-boring
|
|
Dummy weight less unbalance correction machine
|
1988
|
|
|
Automation of centralized tool grinding
|
Differential vibration tester
|
1989
|
Ceramic shoe for paper lapping
|
Roll-formed tap
|
|
In-line 3D measuring machine
|
Thermometry correction for internal/external diameter measurement
|
||||
Leak test leak volume quantification
|
||||
1990
|
|
Face-hobbed hypoid gear cutting
|
|
|
1991
|
|
|
|
Start of receiving gauges without inspection
|
1993
|
Adoption of roll-formed tap
|
High-speed aluminum milling
|
|
Measurement and Instrumentation Engineering Division established
|
CBN grinding stone for crankshaft pin grinder
|
Double-face fixed holder
|
Hypoid gear surface-form measuring machine(using gear face diagonal measurement technology)
|
||
1994
|
|
High-speed steel dry hob
|
|
Small, flexible measuring unit
|
1995
|
|
|
|
Mesh transmission error measuring machine
|
Master-less leak tester
|
||||
Machine gauge support system
|
||||
1996
|
|
|
Flexible setting gauges introduced
|
|
1997
|
Synthetic cutting and grinding coolant
|
Electric impact wrench
|
|
Engine motoring tester (quantified inspection of sensory test)
|
Water-soluble paper lapping coolant
|
Direct tapping on die cast hole (process shortening by single-pass machining)
|
In-line 3D measuring machine (abolition of specialty gauges and automation of measuring)
|
||
Cemented carbide dry hob
|
||||
1998
|
|
Vibration holder to cut chips into pieces
|
|
Loaded balancer (for propeller shafts)
|
Deburring by brushing and high-pressure washing
|
||||
1999
|
In-house hob coating
|
Mist rolling process
|
Clean room for tool setting area
|
|
2000
|
|
Tool localization promoted at overseas plants
|
|
Crankshaft bore diameter measurement included in boring process
|
2001
|
|
Gear dry cutting
|
|
Engine noise quantified inspection technology
|
Standardized equipment, jigs, and tools
|
||||
Evaluation of production conditions (tools and jigs) by proto-production (proof processing)
|
||||
2002
|
|
BT30 holder
|
|
Completion of Measurement and Instrumentation Experiment Building
|
Installation and operation of high-energy x-ray CT equipment
|
||||
2003
|
CBN grinding stone for bore honing process
|
Semi-dry drilling of crankshaft oil holes
|
|
3D development of in-line measuring machine
|
Roll-formed tap (aluminum parts tapping)
|
Normal temperature press- fitting of valve seat
|
|||
2004
|
|
Elucidation of grinding crack mechanism
|
|
"All Toyota Measurement Management Network" commenced
|
Semi-dry machining
|
||||
Chip suction equipment
|
||||
Transformation to hard milling for cage window finishing process
|
||||
2005
|
|
Liquid honing process (for crankshafts)
|
|
Technology to visualize molten metal behavior in dies developed (for high-quality die casting)
|
Visualization technology for sintering process developed
|
||||
Measurement technology for space temperature developed
|
||||
Gear pair contact tester
|
||||
2006
|
CBN coating tip
|
|
|
Bore diameter measurement included in the bore honing machine
|
Mass balance introduced (for lightweight crankshaft)
|
||||
2007
|
|
Planet machining (bore finish boring)
|
|
Flow sensor for aluminum molten metal
|
One-pass reamer finishing without drilled hole
|
||||
High-efficiency drilling of aluminum parts
|
||||
2009
|
|
Flexible nut runner (at Shimoyama Plant)
|
|
|
Hard milling for outer groove
|
||||
2010
|
|
Semi-dry machining for aluminum parts
|
|
|