Each subject has one or more supporting methods to realise the
subject intentions, all outlined in this thesis.
Subject 1: Schematic process planning
The methodology for systematic process planning covers
interpretation and transfer of design requirements into the schematic
process plan. The schematic process plan facilitates explanatory
representation of machining or heat treatment operation elements,
process sequence and important decisions such as the choice of datum,
clamping surfaces and tools. The representation of measuring operations
and measuring equipment is done by the same principles. It is desirable
to highlight key features derived from both design specification and
manufacturing process development.
Subject 2: Capture of process behaviour
Subject 2 contains the supporting methods; simulation, design of
experiments (DOE) and multivariate analysis. The aim is to capture
knowledge and information about the behaviour and abilities of potential
manufacturing processes to be included in the process plan design.
Subject 3: Tolerance synthesis and analysis
The DDC2 technique is used to support the development of a process
plan regarding synthesis and analysis of tolerances. Different process
plan solutions, tolerancing strategies and control strategies can be tested
and the outcome of a contemplated or existing manufacturing process
predicted.
In the following sections, summaries of the appended publications are
presented after a short introduction to each subject.
5.1 Schematic process planning
The schematic process planning has been characterised as a
descriptive and qualitative part of the process planning domain. This has
mainly been dealt with in the licentiate thesis “An approach for
systematic process planning of gear transmission parts” (Bagge, 2009).