Rolling Forged Camshaft
13
The advantage of rolling forge • High Efficiency One or two parts are finished in one rotation of the roller, 2-12 parts are finished one minute. It can save the machining cycle time also. • Save Material Rolling forge made by wedge rolling technology have high precision and can be made with various shapes like tapered flange or right-angle flange. It saves 10-20% material than die forging and 20-40% than bar cutting in average. • Good Quality The part's mechanical property can be raised by 25% synthetically resulting from complete steel fiber and the grain refining after rolling. • Lower cost For the above reasons, the cost can be reduced 20-40% comparing with the traditional bar machining.
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Transcript of Rolling Forged Camshaft
The advantage of rolling forge
• High Efficiency
One or two parts are finished in one rotation of the roller, 2-12 parts are finished one minute. It can save the machining cycle time also.
• Save Material
Rolling forge made by wedge rolling technology have high precision and can be made with various shapes like tapered flange or right-angle flange. It saves 10-20% material than die forging and 20-40% than bar cutting in average.
• Good Quality
The part's mechanical property can be raised by 25% synthetically resulting from complete steel fiber and the grain refining after rolling.
• Lower cost
For the above reasons, the cost can be reduced 20-40% comparing with the traditional bar machining.
Area: 6500 m2
Machine quantity: 60 machines,3 forge lines
Employees: 150 Shifts: 3
Production: 1800,000 pieces a year
Rolling Forge Machine
Rolling forge Rolling forge raw camshaft
H1200 rolling forge machine
Rolling Forge Workshop
material checking
cutting
induction heating
normalizing
rolling forge
Rolling forge process
straightening&detecting
raw bar of camshaft
Finished machine
Cam grinding machine
JUNKER JUN5000/10
Made in Germany
2002
Cam grinding machine SCHAUDT CF-61 Made in Germany 2002
INSTRUMENT ADCOLE MODEL-911 Made in USA 2002
Area:8000 m2
3 produce lines
Employees: 120 Shifts: 3
Production: 500,000 pieces a year
Machining Workshop Overlooking
Raw bar of camshaft
lobe milling rough grindi
ng
induction hardening& tempering
Finished grinding
center drilling& turning
Crack detecting
Checking
camshaft machining process
marking& packing
Hardness measurement HRC,HB,HV
Future FV700,Japan
Metallography Microscope
Olympus PMG3 Japan
Electronic strength instrument
Made in China
Checking machine
3D-Coordinate measuring machine
Made in china
Instrument for camshafts
ADCOLE MODEL-911
Made in USA
Checking Machine
Comparison with the traditional machining
Example Size of
lay-off Weight
(kg) Raw’s turning Time
Mechanical character
Steyr 6 cyl.
camshaft
Ф65×715 18.63 16.5min.
Bar Ф65×985 25.64 24.5min.
Results Material Save 27.3%
Caterpillar6 cyl.
camshaft
Ф65×615 15.89 12min.
φ65×876 22.81 19min.
Results Material Save 30.3%
efficiency improve 48%
Rolling forge
Bar
The mechanical character improve 25% ;Metallograph refine than the bar.
Rolling forge
efficiency improve 58%
Sample
Cutting Rolling forge Turning
Steyr 6 cyl. Camshaft
Steel bar：φ65×715
Raw camshaft φ65×985
Semi-finished camshaftφ61.8×980
Caterpillar 6 cyl. Camshaft
Sample
Cutting Rolling forge Turning
Steel bar：φ65×615
Raw camshaft φ65×876
Semi-finished camshaftφ62.2×872
Different state camshafts
Rolling forged
Turned
Lobe milled
Lobe grinded
Material : SAE1080 CF53 45 20Cr …
