How to remove the burrs of metal powder injection molding parts?

How to remove the burrs of metal powder injection molding parts?

These items not only have high precision, but also have good performance. They are suitable for mass production of small precision and complex metal parts. However, there are burrs on the surface of the parts, which affect the beauty of use, and need to be removed by reasonable methods.

Burr removal method of metal powder injection molding parts:

1. Electrolytic deburring.

This deburring method is realized by electric energy and chemical dissolution of anode.

2. Chemical deburring.

Put the cleaned parts into the metal solution, and the metal on the part surface will be transferred into the solution in the form of ions. These ions attach to the surface of the part, forming a film with high resistance and low conductivity, protecting the workpiece from corrosion. The burr is higher than the surface, and can be removed by chemical action.

3. High temperature deburring.

Put the parts that need to be deburred into the tight sealing chamber, and then put them into the hydrogen and oxygen mixture with a certain pressure as a whole, ignite and explode the mixture, release heat, burn the burrs of the parts, and do not damage the parts.

4. Roll off the burr.

Put the parts and abrasive into the closed drum together. During the drum rotation, the dynamic torque sensor, parts and abrasive are ground together to remove burrs. Abrasives can be quartz sand, sawdust, alumina, ceramics, metal rings, etc.

Whether there is a certain standard for the selection of metal powder injection parts is certain. The standard is generally whether the quality is qualified or not, and whether it can withstand long-term action. The time that the parts with poor quality can be used must be much shorter than the parts with good quality, and at the same time, it will be delayed a lot.