Casting may be defined as the production of a desired shape by introducing a molten material into a previously prepared cavity and allowing it to solidity. The metals most frequently cast are iron, steel, aluminum, magnesium, some copper alloys, and certain zinc alloys. Good casting design dictates the use of as uniform a wall thickness as possible,. Or one that tapers slightly from the thinnest section remote from the gate to the heaviest section at gate.

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VARIETY of DEFECTIVE MOLD and CAUSE. 4 Too small nozzle hole diameter. 1 Small gate or runner. 3 Inadequate position of or no air vent. 5 Cold slag clogging in runner or gate. 2 Wide project area to the machine.

Forging Process Material Metal, Forging, Forging Definition. Forging or forging process is a metal forming process to produce the final product to provide a compressive force with a certain loading rate. In this formation, the workpiece in at or pressed with the tool through several stages. Some examples of products produced using forging forming technology can be seen in the image below. Kitchen utensils such as spoons, forks and knives to eat the products formed by the forging process.

Iron is the major constituent in the steel used in tooling, to which carbon is added in order that the steel may harden. Alloys are put into steel to enable it to develop properties not possessed by plain carbon steel, such as ability to harden in oil or air, increased wear resistance, higher toughness, and greater safety in hardening. High alloy air hardening steels are never normalized, since to do so would them to harden and defeat the primary purpose. This is a method o.