Rolling bearing parts manufacturing process
Rolling bearing parts manufacturing process
PRODUCT
Bearing processing route
by：Waxing
2020-10-05
1 the blanking process route - forging blank - isothermal spheroidizing annealing to turning processing to coarse grinding, quenching, tempering to fine grinding, stabilizing treatment (
Additional tempering)
And lapping surface to inspection to finished product, cleaning, rust.
2 prepare heat treatment GCr15 steel prepare heat treatment is the spheroidizing annealing, aim to enable an organization to uniform distribution of fine granular pearlite, and get the best machining performance and provide good original organization for quenching, quenching and tempering after get the best mechanical properties.
GCr15 steel annealing organization for uniform fine pearlite.
3 turning processing. 3.
1 coarse car according to the turning process drawing for rough turning processing, cutting speed, cutting process in strict accordance with the provisions of (
General cutting speed for the 5 r/min.
Cutting allowance of 10 mm ~ 12 mm)
3.
2 rough turning of bearing parts, after the completion of coarse car using three bearing, flat (
Don't allow together)
, the aging time not less than 48 hours to finish turning processing.
Fine car bearing parts, the cutting speed at six to eight revolutions per minute, cutting quantity to zero.
3 to 0.
5mm。
3.
3 forming essence car molding parts the last car, to prevent deformation of parts, parts should be the fixed clamping device to loosen, make parts in no stress state, the turning speed of 8 rotations per minute (RPM), cutting the amount of 0.
2mm。
4 cleaning in 80 ~ 90 ℃, 3% sodium carbonate (
The mass fraction)
Heat cleaning in aqueous solution.
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