While metal casting might be the best process to manufacture a wide range of components, depending on your needs, a forging could be the best option. Or vice-versa. Here are 5 things to consider when deciding if a casting or forging is right for your component, application, and overall needs.
As governments and first responders around the world address the evolving threat of the coronavirus, it appears that it could be some time before things return to normal. MetalTek is fortunate to share an update that we hope provides a small measure of certainty to you during this uncertain time.
MetalTek is part of multiple "Critical Infrastructure Industries” as defined by the U.S. Department of Homeland Security, including the “Defense Industrial Base.” Companies in such industries are asked to maintain normal work schedules during the crisis to ensure that the U.S. remains safe and secure. As a result, all five MetalTek facilities are maintaining operations and we anticipate no disruptions to production or shipping.
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Which casting process should you use to manufacture your metal part? This is a common question when customers develop a new component or are considering making a switch to metal castings from a fabrication or forging. Partnering with a supplier that brings a full range of metalworking processes lets you be confident that you are getting the best metalworking advice and not just being sold on an idea because it is the only answer a supplier has.
In this article, we will cover various casting processes you might select based on your product design and needs in a simple, bullet point format.
NOTE: This article assumes you have a basic understanding of various casting methods. More specifically, sand casting, investment casting, and centrifugal casting.
Investment Casting (Lost Wax Casting)
Factors such as design requirements, cost, and feasibility to manufacture dictate which casting process is most suitable to manufacture a product. This article describing investment casting is intended to help you make an informed casting decision.
Investment casting produces precise components while minimizing material waste, energy, and subsequent machining. It can also ensure the production of very intricate parts. This makes the investment casting process quite useful to design engineers.
The goal is to understand what is meant by investment casting. So, What exactly is the investment in “investment” casting? The term “invested” historically carries the meaning of “clothed” or “surrounded.” Investment casting employs a shell made of ceramic, plaster, or plastic that is formed around a wax pattern. The wax pattern is melted and removed in a furnace and metal is poured into the shell to create the casting.
What is investment casting used for? Let's break down the investment casting production process for a greater understanding:
Austenitic stainless steels are a form of stainless steel that contain significant amounts of chromium and nickel, often manganese, molybdenum, and nitrogen as a supplement to the iron base. The addition of nickel to otherwise ferritic chrome-iron alloys yields predominately austenitic alloys. The microstructure change brings a marked increase in ductility and toughness.
The family of austenitic stainless steels is, by far, the most widely used of the stainless alloys in industrial markets. That is because corrosion resistance provided by austenitics is generally the best of all standard stainless types. Materials are non-hardenable (hardness ranges 130 to 200 BHN), non-magnetic to slightly magnetic, and are readily weldable and machinable.