Year: 1996
Type: article
Abstract: In cutting and grinding operations, cutting and grinding fluids are generally used for cooling and lubricating workpieces at the point of cutting. These fluids often contain sulfur, phosphorus, chlorine or other such extremepressure additive to improve the lubricating performance. These chemicals present health hazards they are introduced from the running machine into the workplace atmosphere in the form of liquid splash. Furthermore, treatment of the waste liquid costs high, and the treatment itself is a source of air pollution due to the fact that the process involves extremely high temperatures, and particularly so when the waste liquid contains chlorine. This paper describes the results of a study of a new grinding method (Cooling Air Grinding System). It eliminates the need for hazardous conventional grinding fluids, yet provides a better grinding performance than the conventional technology. The method consists of a CBN wheel, well known for its low heat emission during grinding, and a supply of cooling air to the grinding point. The CBN wheel has been treated previously with a solid lubricant or an extremely small amount of vegetable oil was supplied at a rate of 10ml/h in addition to the cooling air supply. The test results indicate that the combination of CBN wheel and air supply maintains a clean workplace and suppress heat emission into the atmosphere.
Language: English
Subfield: Mechanical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: bronze
OpenAlex ID: W1982926021