Hand Tool Vibration and Vibration Energy Transmitted to the Hands of Pneumatic Chipping Hammer and Pneumatic Grinder Operators During Foundry Casting Cleaning Operations

摘要

The transfer of acceleration and energy from vibrating tools to operator's hands was investigated. Average values of amplitude and phase of tool energy were measured in a range of 6.3 to 1000 Hertz (Hz) for 75 workers, and acceleration was measured for chipping hammers and grinders. The tool energy was below 80Hz. Acceleration of chipping hammers exceeded exposure limits proposed by the International Organization for Standardization while grinders were within those limits. The authors conclude that larger handles give lower values of displacement mobility.