Musculoskeletal disorders (MSDs) are common health problem throughout the world and a major cause of disability in the workplace. This study was conducted among workers of a small scale forging Industries. The small scale forging units involve various kinds of high repetitive processes like Blanking, cutting, shearing, furnace loading, hammering, punching and trimming etc. the workers performin...

Micro-alloyed steel components are used in automotive industry for the necessity to make the manufacturing process cycles shorter when compared to conventional steel by eliminating heat treatment cycles, so an important saving of costs and energy can be reached by reducing the number of operations. Microalloying elements like vanadium, niobium or titanium have been added to medium carbon steels...

It has been clarified that deformation and annealing of martensite starting structure can produce ultrafine-grained structure in low carbon steel.  This study aims to investigate the texture evolution and mechanical properties of samples with martensite structure deformed by two different forging processes. The martensitic steel samples were forged by plane strain compression and multi-directio...

This paper analyzes three typical mechanisms of heavy forging robot grippers: pulling with a sliding block including shortand long-leveraged grippers and pushing leveraged grippers, and uses multi-objective evolutionary genetic algorithm to design the optimal forging robot grippers. The decision variables are defined according to the geometrical dimensions of the heavy grippers, and four object...

In this paper, the high temperature deformation behaviour of 17-4PH steel was studied. A new forming optimization method proposed. The study will help guide obtainment high-precision and high-mechanical properties forging products in aerospace industry. hot compression test carried out on a Gleeble1500D machine (DUFFERS SCIENTFIC, Beijing, China). stress–strain at 1000 °C~1150 °C strain rate 0....

Studies that examine spatial character-istics of urban unemployment are oftenbased on some simplistic and problematicmeasures of employment accessibility. Thispaper presents a refined methodologicalframework for measuring accessibility,which enables the researcher to (1) improvethe measurement by accounting for job com-petition among workers commuting by dif-...