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Shangjiao Industrial park, Changan Town, Donguan City, Guangdong Province, 523878 China
Precision Machining Services

CNC Precision machining part

Turned part:
Item No.:
Capabilities applied/Processes: CNC milling,CNC machining,Heating   treatment, Electric   discharge,Grinding, Wire cutting
Tightest   tolerances: 0.002mm
Material  used: SKD11,SKD61,SK3,SKH5,SCM
Quantity: 20pcs
Leadtime: 5days
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  • Description


 First step:Rough Machining

During rough machining the main purpose is to remove as much material in as little time as possible. The tool steel has not been hardened so that the cutters can take away material quickly. In this step we are not machining any small details.

The Second:Heat Treatment (Hardening)

Before we start machining the fine details , we harden the material. Heat treating of tool steel is a sophisticated metallurgical process using a combination of controlled heating close to the melting point, case hardening (multiple heating cycles at reduced temperatures), quenching in an oil bath, and cryogenic hardening using liquid nitrogen. Afterwards the material looks a bit rough . Now that hardening is done we can move on to Grinding and CNC machining.

The Third:Fine Machining

After rough machining, heat treatment and Grinding, the parts will be transferred to the next CNC machining center for fine machining, using complex computer programming and modern cutting tools to get fine details. Once the machining is done, the tool steel needs to be EDM.

 The Fourth:Electric Discharge Machining (EDM)

The parts required extensive use of EDM. Electrodes for the EDM machine are custom made for those  components. In this case, EDM allows for more precise corner radii than CNC machining. Next step we need to do wire cutting for the details.

 Finally: It is then thoroughly inspected to the customer’s specification before shipped to customer. 

To learn more about this project, including tolerances and inspection processes, please CONTACT US today or see the table below.

Product name

Precision insert

Product  description

There are insets parts for the mold and precision machines.

Capabilities applied/Processes

CNC milling,CNC machining,Heating   treatment, Electric   discharge,Grinding, Wire cutting

Overall part dimensions

0.5-300   (mm)

Tightest  tolerances


Material  used


Inspection performed

Dimensional inspection, visual inspection



Turnaround time