Troubleshooting RTM processing problems

Abstract

Problems can occur in RTM processing during all stages from tool tryout, through prototyping and on into production. In some ways it is easiest to work with production problems as in this case there is at least the assurance that the process has at some time been working as required. This case will, therefore, be considered first. The initial step is to quantify the problem, identify the required behaviour and the departure from the required behaviour. The critical point here is to ensure that the problem is real. For example a change in inspection staff may have led to a change in reject rates, even though the absolute quality levels are unchanged. Problems are usually defined through a change in product quality, but other problem types are possible such as an increase in downtime of injection machinery or damage to tooling.