Design Improvement Of Power Tool For Safely And Quickly Cutting And Bevelling Pipes

Mohd Faeiz, M.Nawawi (2011) Design Improvement Of Power Tool For Safely And Quickly Cutting And Bevelling Pipes. Project Report. UTeM, Melaka, Malaysia. (Submitted)

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Abstract

Over the last few decades much effort has been put into automation of different departments of the Investments Casting Industry, especially in wax and dipping. One area that is still in the "dark ages" in regards to automation is the cut off process. Cut off is an nightmare for companies due to the risk of injury that it presents for the employees. A lot of time and effort researching how to completely automate the process thus removing the human involvement. Removing the operator from the process completely however does present a new range of issues and this paper is designed to highlight these issues so that there can be better understanding of what is required to be able to facilitate automation. To this day, cut off in this industry involves either the operator holding the tree and presenting the tree to the abrasive wheel, or having the tree clamped and the operator controlling the motion of the tree remotely. The first is dangerous due to the close proximity of the operator to the abrasive wheel and the manual handling issues due to supporting the casting while cutting off. The second, whilst improving these issues, does not remove the operator from the process and consequently leaves it open to operator error. It is also very difficult to completely enclose the machine to protect the operator whilst giving them the visibility and functionality required to cut off successfully. Automation overcomes both of these issues as once the tree has been loaded into the machine the operator is then completely isolated. This allows for complete protection of the operator from coming in contact with the abrasive wheel and protects them from sparks and fragment of wheels that may shatter.

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