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Machined Investment Castings

Ferralloy, Inc. is producing  investment cast, internal valve components for an international Pressure Relief Valve manufacturer in the oil and gas industry.  The ‘high lift disc’ components are cast in 17-4 stainless steel, machined, and heat treated to the customer’s drawing specifications and hardness requirements.  These investment castings are purchased in lot sizes between 10,000 and 20,000 each.  Ferralloy, Inc. maintains an inventory stocking program for this customer and releases small quantities on a schedule to meet their production requirements without having to carry excessive inventory in their facility.


Machined Investment Casting | The Machining Process

To obtain many specific metal components there are certain processes that the metal undergoes. For products like a machined investment casting components, it needs to undergo a process after the part is casted called machining. We have already discussed what machining is, but there are several different tools and processes within machining that are specific to the component and its purpose. Depending on what the machined investment casting components will ultimately be used for, the type of machining it undergoes could vary. Curious to find out what types of machining are available for your metal components? Keep reading to find out more!

Machined investment casting is a specialty of Ferralloy.

Types of Machining 

The technology involved in the process of machining varies between different tools used for cutting. There are times where a machined investment casting needs a certain texture or a very specific measurement, and in each case a different tool is utilized. A few of the different types of machining operations include turning, drilling, boring, reaming and milling. In turning a single edge cutting tool is used to remove excess material from a rotating component and create a cylindrical shape. In drilling a round hole is being created and in boring, which is similar, a single bent tip is used to improve the accuracy of an already roughly made hole. Reaming removes a small amount of excess metal from an already drilled hole and milling is a rotating tool with several cutting edges that is utilized to create a straight surface.

Machined Investment Casting Applications

Investment casting is used in aerospace and power generation industries to create a variety of components. Machined investment casting includes the process of machining the component after it has been manufactured in order to have it delivered to the company’s exact specifications. In these types of industries, it is important to ensure that any exact measurements are achieved in machined investment casting, and Ferralloy Inc has the experience and authority to provide this service and product to you. As an industry leader, Ferralloy, Inc is equipped and experienced in delivering high quality metal components at competitive prices. Contact our metal component manufacturing company today!

The Simple Guide to Investment Casting

If you are in an industry that uses food processing equipment, valve components, power generation equipment, hydroelectric facilities, or furnace parts, chances are that you have heard the term “investment casting”. But what is investment casting? And more importantly, why should you use it?

What is the Investment Casting?

A high quality investment casting can be found at Ferralloy Inc

Investment casting (also known as lost-wax casting) is an industrial process based on one of the oldest known metal-forming techniques. It was developed over 5500 years ago and continues to be an integral part of metalworking to this day. Investment casting takes a wax outline of a part and coats it with a ceramic material. It is then heated until the wax is melted out of its center. Molten metal is then poured into the hollow ceramic mold. The metal hardens, gets broken out, and the part is made.

Why Should I Use Investment Casting?

There are numerous explanations why people decide to use investment castings. Here are the 5 main reasons why you should consider the investment casting process:

  • Practically any metal can be manufactured by this process. This includes aluminum alloys, bronze, tool steels, stainless steels, cobalt alloys, carbon steels, Hastelloys, and precious metals.
  • It can manufacture extremely complex parts that would otherwise be extremely difficult or impossible.
  • It creates very smooth surfaces with no parting line. As a result, only minor machining is required.
  • Very thin sections can be made. Castings with sections as narrow as .015 inches have been manufactured with investment castings.
  • It produces high dimensional accuracy with tolerances as low as .003 inches.

What Industries Use Investment Casting?

Due to their massive benefits, investment castings are used in a wide range of industries. The aircraft and aerospace industries use investment castings for turbine blades, vanes, and structural components such as fan exit cases and struts. Investment castings are also used for valves, fittings, sporting goods, pumps, engines, turbines, military and small arms applications, airframes, missile controls, medical equipment, dental fixtures, gears, jewelry, machine tools, office machines, and numerous other complex parts.

If investment casting is something you are interested in, Ferralloy can help! We are experts in castings, fabrications, forgings, machining, and any of your other metalworking needs.  Get the components you need, when you need them by contacting Ferralloy today!