Investment Casting Manufacturer in Turkey

BRK Metal is an investment casting manufacturer based in Adapazarı, Sakarya, Türkiye, in operation since 2002. Around 60% of our output is exported, mostly to Europe.

Investment casting is a casting type that offers higher dimensional precision and more design freedom compared to traditional casting methods. In investment casting manufacturing, paraffin-based wax is used as the model. In the investment casting process, wax models of the desired parts are injected into a metal mold using an injection machine for each order quantity. The shape that emerges after the injected wax cools down is an exact replica of the metal part to be produced.

Advantages of the Investment Casting Process

To achieve the purest form of liquid metal, it is essential to use good raw materials. Gas voids in metal casting are caused by the entrapment of gases like hydrogen, oxygen, and nitrogen during melting. To prevent this, the hydrogen, oxygen, and nitrogen levels must be minimized during the melting of the metal.

Investment casting, a method that allows the production of complexly shaped parts in one piece, is advantageous due to its ability to shape metal. It has many advantages over other casting methods, including the ability to produce both very small parts, starting from 1 gram, and large parts. Investment casting also enables the production of complex parts that cannot be produced by many other methods.

Stages of the Investment Casting Process

In the investment casting process, modeling of the product to be produced is first carried out. Through modeling, a prototype of the product can be obtained. This process ensures the creation of the final product with accurate dimensions. The produced wax models are attached to the runner part and the main wax body. The structure formed resembles a tree. Thus, gathering multiple wax models together allows the production of multiple parts in a single casting process. These tree-like wax models are coated with several ceramic-based materials with refractory properties.

It is crucial that the coated refractory has no cracks and is thick enough to withstand casting pressure and temperature. This process usually takes about 4-7 days. After the entire surface is coated and the drying process is completed, the wax material forming the main body and parts is removed through a special autoclave process with sudden pressurized steam. This leaves the interior of the refractory material hollow. This hollow space equates to the cavity of the body and parts to be cast. This space is referred to as the ceramic mold of the process, and ultimately the metal is melted and poured into this cavity.

Final Stage of the Investment Casting Process

The melted metal, prepared in the desired analysis, is poured into ceramic molds through a special process and left to cool. Once the cooling process is complete, the ceramic shell on the metal is removed using a vibration method, and the tree-like structure initially formed in wax becomes metal.

The parts are then cut from this tree-like structure, sanded, blasted, and prepared for delivery as requested by the customer. This process allows for the casting of stainless steel, carbon steel, aluminum, magnesium, and their derivatives in the same method with various applications within the process.

Why Choose Investment Casting?

The advantages of investment casting are as follows;

• Reduction in Machining Cost
• Surface Quality
• Design Freedom
• Cost Savings
• Variety in Alloy Metal
• Low and Long-Lasting Mold Cost
• High Quantity Production in a Short Time

Investment Casting Capabilities at BRK Metal

BRK Metal is an investment casting foundry in Turkey that produces parts to customer drawings. Most of our exports go to customers in Europe.

• Part weight: 1 g to 25 kg
• Monthly capacity: 5,000 clusters
• Main alloys: 4140 low-alloy steel, 304 and 316 stainless steel, and low-carbon steels
• Tolerances: VDG P690, up to D3, the tightest class
• Management systems: ISO 9001, ISO 14001, ISO 45001 and ISO 10002

Alloys for Investment Casting

4140 is a chromium-molybdenum low-alloy steel that responds well to heat treatment, so it is a common choice for parts that need strength and wear resistance. 304 stainless steel offers good general corrosion resistance. 316 stainless steel contains molybdenum and is preferred where chlorides or more aggressive media are present. Low-carbon steels are suitable for parts that are welded or case hardened after casting.

Investment Cast Firearm Parts

We cast trigger, mechanism and body parts for rifled and smoothbore firearms and pistols. These parts combine small sizes, fine details and tight dimensions, which is where investment casting saves the most machining. See examples on our products page.

When Is Investment Casting the Right Choice?

Investment casting suits parts with complex geometry, thin walls, undercuts or fine surface detail, and parts that would otherwise need heavy machining. Because the part is cast close to its final shape, material waste and machining time go down. Tooling is an upfront cost, so the process usually makes the most sense for repeat production. Our investment casting process page explains each production step.

Why Source Investment Castings from Turkey?

Turkey is a practical casting source for European buyers. Turkey and the EU are in a customs union for industrial goods, so castings shipped with an A.TR movement certificate can enter the EU free of customs duty. Most of our exports go to customers in Europe, and we work to the VDG P690 tolerance standard that European drawings often specify.

Further Alloys: Aluminum, Bronze and Magnesium

Alongside steels, we cast aluminum for light parts, bronze for wear and seawater service, and magnesium where weight matters most. Our 304 vs 316 guide and 4140 casting guide help with grade selection.

How a Casting Project Works

1. Review: You send your drawing or 3D model, alloy and annual quantity. We check castability and quote the part.
2. Tooling: We build the wax injection die for your part.
3. Samples: We cast samples and check them against your drawing for your approval.
4. Series production: We cast, finish and inspect your parts to the agreed specification.
5. Delivery: Your order ships with the agreed documents.

Our design guidelines explain how to prepare a part for casting, and investment casting vs sand casting helps you choose the right process.

Investment Casting vs Sand Casting vs Forging

Investment casting is usually the better choice for small, complex parts that would otherwise need a lot of machining. Sand casting suits very large parts and low tooling budgets. Forging suits simple shapes in large series where maximum strength is required. We cast parts from 1 g to 25 kg; send us your drawing and we will tell you if investment casting fits.

Investment Casting FAQ

Where is BRK Metal located?

Our headquarters are in Adapazarı, Sakarya, Turkey, and we have operated since 2002.

What part sizes can you cast?

We cast parts from 1 g to 25 kg, with a monthly capacity of 5,000 clusters.

Which tolerance standard do you work to?

We work to VDG P690 and can meet D3, its tightest class. Other requirements can be reviewed against your drawing.

Do you export to Europe?

Yes. Most of our exports go to customers in Europe.

Request a Quote

Send your drawing, alloy and annual quantity through our contact page and we will review your part.