During the production of investment castings, it is avoidless that some investment casting defects are occurred due to some wrong operations. Below are some of the common defects: 1. Gas hole Gas hole is the hole that exists in the casting surface or internal area. It can be round, oval, or irregular shape, sometimes is an air mass made up of multiple gas holes. Internal gas holes is usually pear-shaped. Shape of choking hole is irregular, and the surface is…
Like mining industry, construction machinery, oilfield industry, medical machinery is also one of the main industries that our investment castings are served for. Investment Castings are used in medical related applications where the complex metal components are used. With our modern investment casting technique, CFS foundry can cast all metal alloys such as stainless steel, aluminum, ect in precise dimensions. We can supply medical investment castings for: Operating tables and other operating room equipment MRI machines X-ray equipment Stretchers, wheelchairs…
Investment Casting is an age old process that is over 6,000 years old. The process involves creating a mold in which a liquid material is poured into and then dried or cooled to create the desired shape/object. The most common use of this process is to produce steel casting parts. This process is flexible enough that complicated shapes and designs can be used to create products that are ultimately cast in one piece. Where other processes may demand that the product…
In it’s simplest form, investment casting can be thought of as the melting and flowing of any of todays common engineering metals and alloys into molds of virtually any net shape, to produce a near net shape component once cooled. Comparing this to the widely-accepted practices of machining components from solid raw stock, where material is REMOVED to get to the net end shape, and all of the problems associated with that, this is a very simple way to visualize…
CFS Foundry ever shared a post about converting weldments into investment casting, in which we presented successful projects we have completed with our customers. Today we would like to share if converting your machined parts into investment casting. First of all, we have to be honest for the fact : It is not always a benefit to convert any part into investment casting. For example: * Parts with simple shapes close to the one of a steel plate or bar are…
As one of the most popular metalworking process, investment casting could be used to produce a variety of precision components in many materials. Below are the common investment casting materials used in CFS foundry: Cast Steel Cast steel usually refers to normal carbon steel, alloy steel and stainless steel. It is the investment casting material used to make steel castings with carbon content lower than 2%. Common cast steel grades: Carbon steel & Alloy steel Stainless steel AISI1010 AISI4130 302(CF-20)…
Due to the benefits of making investment castings in China, Chinese investment casting industry is booming at a high speed recently years. More and more foreign companies turn to China to purchase custom investment castings for the low price and increased service. Normally the cost of a new develpped investment casting part is tooling cost and unit price. Tooling cost Tooling cost refers to the production cost of casting molds, which is mainly made of aluminum alloy. Compared with forging…
Stainless steel casting is the most widely used technique for valve components. Together with pump castings, such valve castings require highly complicated designs and alloys. With silica sol casting process, we are experienced in making different kinds of valve castings in stainless steel. Material grades for stainless steel valve castings We meet and exceed our customers’ specifications for exceptional casting finishes, quality and dimensional accuracy. Frequent materials grades of stainless steel valve castings purchased from CFS foundry are: Stainless Steel…
70% investment castings made by CFS Foundry are exported to US or Eourpean companies, these investment castings are usually customized following the drawing specification that apply to US or Euro local standard so it can well performed. Comparing with domestic castings, the exported investment castings require a higher capability to investment casting manufacturer on not just how to make the investment castings but also how to work with US compaines. Here we share with you a custom investment casting project…
When you are in need of investment castings, it is quite important to cooperate with a reliable company. So how to choose a reliable investment casting supplier? There are several matters need attention. I. The Business Core of Investment Casting An appropriate investment casting supplier should be selected according to its advantages. In other words, what kind of investment castings the factory is professional in producing. If the material of your investment cast part is stainless steel, then you should…