Introduction

You are the process planner for a small$-$to$-$medium sized sub$-$contracting manufacturer who specializes in the precision manufacture of parts for the aerospace and petrochemical industries. You have been given the drawing shown in Fig. $3\mathrm{.}24.$ and asked to develop the process plan. Therefore, the first task is to analyse and interpret the drawing to identify the critical processing factors.

Additional information

The customer has provided the design drawing including the material specification for the adapter ring. The job has been sub$-$contracted due to the lack of expertise within the customer organization. The raw material is supplied in a $\backslash (\backslash$emptyset $160\backslash$times $60\backslash$mathrm$\{$~mm$\}\backslash )$ billet and the general surface finish has been specified as $\backslash (10\mathrm{.}0\backslash$pm $1\mathrm{.}0\backslash$mu $\backslash$mathrm$\{$~m$\}\backslash ).$

This is processed through a traditional job$-$shop environment with a wide range of production equipment but no CNC capabilities. The job will be allocated to one shop floor operative who will be responsible for the entire job.