How to effectively remove burrs in metal parts machining

2023-07-20

How to effectively remove burrs in metal parts machining
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Burr - Those who have struggled in the metal industry must be familiar with it, in the metal product processing process, it is ubiquitous, no matter how advanced and sophisticated equipment you use, it will be born with the product. The so-called burr is mainly a kind of excess iron filings generated at the edge of the processing of the processed material due to the plastic deformation of the material, especially the material with better ductility or toughness, which is particularly prone to burrs, and the burr problem is one of the problems that engineers in the metalworking industry have been unable to solve so far.
The types of burrs in the metal processing process mainly include flashing burrs, sharp corner burrs, splashes and other prominent excess metal residues that do not meet the requirements of product design. For this problem, so far there is no effective method to eliminate it in the production process, so in order to ensure the design requirements of the product, engineers only work the removal of the back end, so far there are many different methods and equipment for different products to remove burrs.

In general, burr removal methods can be divided into four main categories

Rough grades (hard contact) belong to this category of cutting, grinding, filing and scraper processing.

Normal grade (soft contact): Belonging to this category, there are abrasive belt grinding, grinding, elastic grinding wheel grinding and polishing.

Precision grade (flexible contact): Belonging to this category, there are washing processing, electrochemical processing, electrolytic grinding and rolling processing.

Ultra-precision level (precision contact): Abrasive flow deburring, magnetic grinding deburring, electrolytic deburring, thermal energy deburring and dense radium powerful ultrasonic deburring, etc., this kind of deburring method can obtain sufficient parts processing accuracy.

When choosing a deburring method, we should consider many factors, such as part material characteristics, structural shape, size and precision, especially pay attention to changes in surface roughness, dimensional tolerances, deformation, and residual stress.

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