Q.1. What is hot working ? State its principles, advantages and disadvantages. Ans. Mechanical working of metals above its recrystallisation temperature is known as hot working. Advantages : 1. Larger deformation can be accomplished and more rapidly by hot working since the metal is in plastic state. 2. Porosity of the metal is considerably minimised. 3. Concentrated impurities, if any in the m...

This article presents the results of research funded by Committee Science Ministry and Higher Education Republic Kazakhstan (grant № AP14972884 "Increasing wear resistance metal-cutting tools method lapping"). There was investigated state tools' problem in conditions machine-building enterprises (RK). It is revealed that do not always endure durability period according to standards are exposed ...

The working conditions of metal fillers, production factors, determining them are considered. results the parameters study fillers’ compared to standard values given.

background and objectives: painting workshops are part of the woodwork (carpentry) industry in which despite advances in technology, the work force fulfills most of the roles in the production process. since such manual activities are often performed with awkward postures due to lack of workers’ awareness and inappropriate design of tools and working conditions, ergonomic assessment of work env...