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...change in dimensions, so if dimensional stability is important a “stabilising” heat treatment is required, which also relieves stresses. Design: Die design is extremely important, and bad die design is the cause of most of the problems in low pressure die casting. The high die temperatures necessary to prevent premature chilling result in less massive dies than for...

...changing the angle and speed of the wheel. The centre heights of the grinding and control wheels are preset, and the diameter of the workpiece is controlled by the distance between them and the height of the work rest blade. The higher the workpiece above the centre-lines of the wheels, the faster it will be ground. However, if placed too high the workpiece will be lifted...

...changes to the atoms in the lattice of the material (austenite). As the beam moves away, to another spot on the surface, the heated area is rapidly cooled by the surrounding metal (self-quenching). This rapid cooling stops the lattice from returning to its original arrangement, resulting in a very hard surface structure (martensite). For cladding, the high temperature of...