Notice BEFORE Coating

To provide perfect process for tools Huasheng needs some basic information about coating tools like substrate material, hardness and temper temperature. Here are materials can be coated:

1. Alloy steel, HSS and stainless steel

2. Cement carbide

3. Titanium alloy

4. Nickle alloy

For chisel steel it has to be tempered twice or more over 500 degree centigrade and keep its hardness and electrical conductivity. Because whole tools would be coated inside chamber in PVD process so make sure the whole tool can meet these requirements.

Please note coating area of a tool with an area for clamping, it is not likely to full coating cover a whole tool. If there is somewhere should not be coated, please annoce us in advance.

Huasheng coating has a largest area of no more than φ900*1000mm

1. Tools for coating cannot be: electroplated, nitriding, carburized, parkerising, oxidized, TD, CVD or other surface treatment

2. There should not be rust, corrosion, oil paint, glue on tool surface

3. Surface roughness: with reach requirement of using, workpiece surface should be as much as smooth, surface Ra<0.2μm is better; for special mirror plastic mold, etched die it depends on product standard

4. Assembling die or mosaic tool must be disassembled

5. Welding ool surface should be completely clean without oxidation layer or hole on top

1. Materials and code of coating tools

2. Tempered teamperature and hardness

3. Note us surface needed coating

4. Dimensional accuracy smaller than 5μm tools need dimensional accuracy requirement

5. Cutting data and workpiece for us to provide perfecr coating

1. HSS and tool steel parts should be oiled before transferred

2. Tool should be packed individualy

3. After coating HSS and tool steel we will also oiled surface (except special requirement)

1. Husheng PVD coating range from 0.5μm to 30μm, with precisely controlled of process

2. If you have high requirement of dimensional accuracy of product please leave the space and announce us in advande

PVD coating can cover complex surface, but only can coat hole with pit-depth ratio no smaller than 1:1 and with coating thickness is thinner with depth.

Huasheng provides decoating service for customer (except some carbide tools)