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...2 Press actuated to bring two parts of die set together. Metal displaced to fill die cavity and pressure held until solidification is complete. [Diagrams to demonstrate the squeeze casting/squeeze forming process] Stage 3 Press ram withdrawn. Die set separated. Component ejected. Components heat-treated and machined when necessary. Manufacture: An alternative to gravity...

...2. Compaction [Powder processes ] 3. Ejection [Powder processes ] 4. Powder fill/remove component [Powder processes ] Sintering operation: [Powder processes ] Manufacture: Premixed powders are blended, e.g. additions of graphite and 0.75% solid zinc stearate lubricant to steel. Cold compaction die cavities are hopper-fed, by gravity, using volume control by sweep back of...

...2–5% of the wheel removed by abrasion. Low wheel wear means less frequent wheel dressing, although the longer runs, between dressing, necessitate more precise wheel truing than for conventional grinding; typically ±0.005–0.013 mm. Despite high wheel costs, and capital costs 5–10 times that of conventional grinding machines, the high ratio of stock removal/wheel...

...2] Plate etching removes all metal not protected by coating applied during developing process. [Manu 3] Manufacture: An alternative to laser cutting, fine blanking and NC machining. Usually most economical for “low volume” production, since tooling costs are low compared with hard tooling. Often used for “one-off” prototypes before commissioning fine blanking...

...2 includes case studies of major accidents to illustrate some important aspects of risk and how we perceive it. Section 3 introduces probability as a method for evaluating risk, and finishes by considering risk management. This OpenLearn course is an adapted extract from the Open University course T193 Engineering: frameworks, analysis, production...Assessing risk in...