Xi'an Gaoling XX Company

1. Processing content: Inner cavity precision machining

Material: 30CrMnSiA, HRC48 ± 2 after heat treatment;

Machine tool: Kaibo CNC lathe (inclined bed);

● Cooling: Internally cooled emulsion;

● Aperture diameter is 173.2, depth is 454, roughness Ra is ≤ 1.6;

● Thin walled parts with a wall thickness of 4mm;

● Continuous processing;

● High processing efficiency is required.

2. Select cutting tools

7-times diameter damping vibration reducing turning tool

VT40 C50x518V

VT40 SVLCL-16T    

VCMT 160404-SM IC907 

3. Cutting parameters

● Speed (S): 120r/min

● Feed rate (fn): 0.12mm/min

● Cut depth (ap): 0.5-1mm

4. Trial knife effect

● Smooth cutting without vibration;

● Compared to traditional homemade turning tools, the efficiency has increased by 200%;

● Dimensional stability;

● The surface smoothness meets the requirements of the drawing.