Can FOTMA manufacture tungsten carbide parts from my drawing or sample?

Yes. FOTMA produces custom carbide components from 2D/3D drawings or physical samples. Our engineers review geometry, tolerances, grade and surface finish, then route the part through pressing, sintering, CNC machining, grinding, EDM and polishing as required.

How do I choose the right cemented carbide grade?

Grade selection balances hardness against toughness. Lower cobalt binder content (around 6%) gives higher hardness and wear resistance for abrasive applications, while higher cobalt content (around 10 to 15% or more) improves toughness for impact loads such as shredder blades and mining tools. Share your operating conditions and we will recommend a grade.

Which quality standard does FOTMA follow?

All production procedures, including sintering, CNC machining, grinding, EDM and polishing, are operated under an ISO 9001:2015 quality management system. Dimensional inspection records and material documentation are available on request.

What information should I provide for a technical review?

Please send drawings (PDF, DWG, STEP or IGES), material or grade requirements, tolerances, surface finish, annual volume and the application environment. This allows our engineers to confirm manufacturability and propose the most cost-effective process route.

Does FOTMA supply materials other than tungsten carbide?

Yes. In addition to cemented carbide, FOTMA supplies tungsten alloys, tungsten-copper and molybdenum-copper electronic packaging materials, molybdenum products, nickel and nickel alloys such as Inconel 625 and 718, heating elements, ceramic products and CNC machined parts.

China CPC material (copper/molybdenum copper/copper composite material) supplier, Suppliers

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China CPC material (copper/molybdenum copper/copper composite material) supplier, Suppliers

Cu/Mo/Cu(CMC) heat sink, also known as CMC alloy, is a sandwich structured and flat-panel composite material. It uses pure molybdenum as the core material, and is covered with pure copper or dispersion strengthened copper on both sides.

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Product Description

Low Expansion Layers and Thermal Paths for Heat Sinks, Lead Frames, Multi-layer Printed Circuit Boards (PCBs), etc. Heat sink material on aircraft, heat sink material on radar.

1. CMC composite adopts a new process, multilayer copper-molybdenum-copper, the bonding between copper and molybdenum is tight, there is no gap, and there will be no interface oxidation during subsequent hot rolling and heating, so that the bonding strength between molybdenum and copper is excellent, So that the finished material has the lowest thermal expansion coefficient and the best thermal conductivity.
2. The molybdenum-copper ratio of CMC is very good, and the deviation of each layer is controlled within 10%; SCMC material is a multi-layer composite material. The structural composition of the material from top to bottom is: copper sheet - molybdenum sheet - copper sheet - molybdenum sheet... copper sheet, it can be composed of 5 layers, 7 layers or even more layers. Compared with CMC, SCMC will have the lowest thermal expansion coefficient and the highest thermal conductivity.

Grade	Density g/cm3	Coefficient of thermal Expansion ×10-6 (20℃)	Thermal conductivity W/(M·K)
CMC111	9.32	8.8	305（XY）/250（Z）
CMC121	9.54	7.8	260（XY）/210（Z）
CMC131	9.66	6.8	244（XY）/190（Z）
CMC141	9.75	6	220（XY）/180（Z）
CMC13/74/13	9.88	5.6	200（XY）/170（Z）

Material	Wt% Molybdenum Content	g/cm3 Density	Thermal conductivity at 25℃	Coefficient of thermal Expansion at 25℃
S-CMC	5	9.0	362	14.8
	10	9.0	335	11.8
	13.3	9.1	320	10.9
	20	9.2	291	7.4

Frequently Asked Questions

What is the advantage of the CMC composite process? It utilizes a multilayer bonding process ensuring no gaps and no interface oxidation, resulting in superior bonding strength and thermal efficiency.

How many layers can the SCMC material consist of? SCMC is a multi-layer composite that can be composed of 5, 7, or even more layers to optimize thermal performance.

How is the molybdenum-copper ratio controlled? The ratio is tightly controlled during production, with layer deviations restricted to within 10%.

Where are these heat sink materials typically used? They are widely used in aircraft, radar systems, lead frames, and multi-layer PCBs.

Why is CMC preferred for low thermal expansion? Its unique composite structure provides the lowest thermal expansion coefficient combined with high thermal conductivity.

China CPC material (copper/molybdenum copper/copper composite material) supplier, Suppliers

Product Description

Frequently Asked Questions

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