(1) When turning step shaft, in order to ensure the rigidity of turning, the part with larger diameter should be turned first and the part with smaller diameter should be turned after. (2) When cutting slots on the shaft workpiece, it should be carried out before finishing to prevent deformation of the workpiece. (3) fine car with thread shaft, generally should be in the thread processing and then fine car without thread part.  (4) Before drilling, the end face of the workpiece should be leveled. Center holes should be made first if necessary.

item	value
Name	Custom cnc milling parts machining service cnc machining items brass hot forging parts
Material	Satinless steel,iron,aluminum,alloy,brass etc.
Tolerance	±0.02mm
Size or shape	According to customer drawing or request
Application	Used Widely
Drawing accepted	All formats. Such as: cad, pdf, solidWorks,proE,ug,etc.
Machining	Laser cutting, cnc punching, bending, turning, milling, reviting, welding, polishing, assembly
Quality Control	ISO 9001,100% QC Test before shipment.
Surface treatment	Polishing, brushing, chrome,painting, powder coating,hot dip,spraying etc.
Delivery Time	7-30 days
Service mode	OEM or ODM, customized
Certificate	ISO 9001
Feature or advantage	R&D ability, FREE design, All in one solution.cost reduction.
Experience	OEM & ODM since 2012

 (9)  When turning on a vertical lathe, when the tool rest is adjusted, the beam shall not be moved at will. (10) When the workpiece surface position tolerance requirements, try to complete the turning in a clamping. (11)  When turning the cylindrical gear blank, the hole and the reference end face must be processed in one clamping. If necessary, a marking line should be drawn near the gear indexing circle of the end face.(5) When drilling deep holes, the guide holes are usually drilled first. (6) turning (φ 10-φ 20) mm hole, the diameter of the knife rod should be processed aperture 0.6-0.7 times; Processing diameter is greater than 20 mm hole, generally should be used to clamp the knife head.  (7) When turning multi-thread or multi-worm, trial cutting should be carried out after adjusting the exchange gear. (8) when using automatic lathes, the relative position of the tool and the workpiece should be adjusted according to the machine tool adjustment card, and the trial turning should be carried out after the adjustment, and the first qualified piece can be processed; Pay attention to tool wear and workpiece size and surface roughness during machining.