Clean up - bearing knowledge of forgings

The purpose of cleaning is to get rid of the burr ring forgings and beryllium oxide. When forging burr size beyond forging technical conditions, went on the grinding wheel grinding, and generally before forgings anneal. Forgings beryllium oxide in commonly after annealing, horizontal barrel cleaning and blasting tumbling two kinds: 1. Horizontal barrel cleaning: the size of different many bearing ring also loaded with 20 ~ 60 r/min speed horizontal roller of rotary rolling and collisions, falls off surface of beryllium oxide from forging, as well as the forging of the burr and edge grinding, to speed up to clean up, sometimes within the drum into some scrap steel ball. The cleaning time generally is 10 ~ 20 min. This method is simple, clear but quality is poor. 2. Blast barrel cleaning: forging load with low speed, 2. 5 ~ 3 r / min) Within the horizontal sealing roller rotation, granularity reaches 0. 8 to 1. Pills for 2 mm of iron or steel, thrown from the high-speed rotation of shot peening blades and rushed to the forging, the beryllium oxide off due to the impact. Steel shot can automatic circulation, beryllium oxide by vacuum cleaner sucked out, forging the impact noise.