What is the burr in the polishing process?

What is the burr in the polishing process?
Polishing machine is to make the product more smooth and detailed, which is very important to remove the burr.
According to the different specifications of the workpiece, the way to burr is also different: the commonly used method of burr has mechanical polishing, mechanical polishing, grinding, sand blasting, chemical polishing, electrolytic polishing, etc..
Mainly depends on the product to determine the burr process, if it is a single product manual to burr on the good. Following on how to burr, summed up some of the process, can be used as a reference to the needs of friends:
1, with electrolytic polishing to burr. According to the actual product specifications and production requirements of the corresponding matching of electrolytic polishing equipment, the cost is not high, economical, efficient and practical, suitable for all kinds of different specifications of the shape of the product.
2, vibration grinding burrs (gear Burr), efficiency is high, the quality can be. More suitable for precision small parts.
3, heat treatment parts can be shot by shot blasting, but also can eliminate the surface stress, this method is not practical.
4, with the wind gun with various shapes of the gun head to burr effect is relatively good, but the efficiency is not very high, it will be limited by product shape.
5, vibration to burr, the quality of the general, but the cost is low.
6, hand to burr, the quality is better, but the efficiency may be low;
7, chemical polishing to burr, no special equipment, simple operation, low cost, only need to soak at room temperature can easily remove the burr. The chemical polishing methods are commonly used for chemical polishing of copper, aluminum and other chemical polishing.