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Squeezeform
Squeeze casting, similarly known as die casting, is a method that combines die casting and forging to create stronger metal alloys for use in construction and defense industries. The resulting metal created from this process is more resistant to wear and heat and has been very expensive to produce. However, because of this new process, the markets for these metals has grown to include agricultural and auto industries.
== History ==
There were several men who have been credited with the creation of squeeze casting. Together, the team of scientists devised a new way to combine extremely high temperatures and 15,000 psi(pounds per square inch) of air pressure to reshape molten metal. Along the way, there were many drawbacks to this creation. Some problems they encountered included combining the exact temperature with the correct pressure in order to form the strongest metal. However, even with so many challenges, it was officially patented on the 18th of October, 1994.
One of the greatest drawbacks that inventors of squeeze casting have encountered is the configuration of reentrant cavities and internal passages that use the core. One of the possible solutions brought up was creating a core from conventional sand coring. Although this method seemed like a valid solution, the high temperatures from molten metal easily penetrated the core made from sand. Along the way, other inventors have also come up with different methods such as using traditional salt cores, but like sand coring, they are equally, if not more susceptible to stress and cracking.
Working on complex processes like squeeze casting, it is easy to focus on one aspect and struggle with another part while working with this metal. For example, it is easy to focus on only weight reduction, and then realize the cost has increased substantially. Other times, costs to produce squeeze casts may drop, all while having the strength of this metal drop proportionally too. But through these surmountable challenges, the many inventors have refined the process even more to devise the process we call squeeze casting.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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