Conference proceeding
Designing reliable castings
SHAPING CASTING: THE JOHN CAMPBELL SYMPOSIUM, pp.63-72
2005
Abstract
Castings offer flexible and efficient design solutions for many products. However, designs are generally based on strength of materials calculations and the experience of the designer. Industrial experience with current products tends to dominate in the development of future designs. This process lead, to an incremental development of design utilizing factors of safety, which lead to increasing weights of components and inevitable inefficient use of materials. Factors of safety are a way of developing cushions to avoid the unforeseen failures because of unexpected loads on the part or reductions in expected properties due to the method of manufacture. All product forms are subject to this paradigm.
In castings the unquantifiable factors such as shrinkage, micro-shrinkage and surface indications lead to more and more conservative design rules. Non-destructive testing such as radiography and surface inspection do not give the designer any way of assessing the effect of shrinkage or surface indications on performance. Programs to design for these casting features and develop new non-destructive standards and techniques are essential to the efficient use of castings. Work to develop more quantitative design rules is addressing the issue of shrinkage and surface indications. The development of new quantitative design rules for castings is progressing for steel castings through an integrated approach between producers, users and researchers.
Details
- Title: Subtitle
- Designing reliable castings
- Creators
- M BlairR MonroeC BeckermannR HardinK CarlsonC MonroeJ Griffin
- Contributors
- P N Crepeau (Editor)
- Resource Type
- Conference proceeding
- Publication Details
- SHAPING CASTING: THE JOHN CAMPBELL SYMPOSIUM, pp.63-72
- Language
- English
- Date published
- 2005
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984231828402771
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