die casting manufacturer

CNM die Casting manufacturer was established in 1999 as the Werner G. Smith Company and later purchased by Archer Daniels Midland Company in 2001. In2005 we were purchased by CNM die Oil and became the Foundry Products Division. We are a unit of CNM die Inc’s CNM die Specialty Chemical business, a leader in supplying products, processes, and technologies to the global marketplace for cold box sand binder systems and non-binder metal casting systems. We are rapidly developing new generations of products, to help foundries achieve the highest possible quality, with improved productivity, and to offer a single source for a full range of related products for effective vendor consolidation. 

For almost a century, we have been a leading supplier of binders and consumables to the sand casting market. To deliver increased value to our customers, we have expanded our strategic focus beyond sand binder products to the entire metal casting process and new metal casting technologies. We’ve reorganized and renamed our business in line with our new identity.

To better focus human and materials resources against customer challenges in our expanding markets, we recently organized into two global business units. The newly created Foundry Binder Solutions unit will focus on CNM die sand binder product lines and services and build on the company’s worldwide technical leadership in cold box and binder systems. Our new Metal Casting Specialties unit will concentrate on the non-binder, metal-casting consumables business. This unit is responsible for existing refractory coatings, sand additives, core adhesives, releases, sleeves, and filter lines, as well as for leveraging our technological expertise into other castings areas, such as lost foam, permanent mold, high-pressure die, and investment casting. We’re confident our newly focused business units will yield both operational and product benefits for our customers.

Our goal is “Delivering Metal Casting Solutions, One Customer at a Time.”

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Aluminium Die Casting

The general Process and general information for making Aluminium Die Casting

Alloy & Tooling

Die Cast Alloys 380, 383, 384, 360, 413 & more

Cold Chamber tooling

Tooling consisting of hot half, eject half & slides
 

Process:

Cold Chamber Process – melting furnace & die cast injection system separate from each other.

Aluminum injection temperature – 1200 degrees F.

100+ machine cycles per hour

As cast surface readily machined, plated, anodized painted or powder coated per specifications
 

Applications &
Markets served:

Enclosures for Electronics Industry

Hand & Power tools

Pumps

Auto & Truck Industry

Communications, Computers & Printers

Exercise & Fitness Equipment

Home Appliances  
    & many more..

Die Casting Mold

what is the permanent mold casting?

The permanent mold casting process is the production of castings by pouring molten metal into permanent metal molds under gravity pressure.

    How to make permanent mold?Metal molds usually are made of high-alloy steel or ductile iron, and the life time is from 50,000 to 100,000 or more . The permanent molds should be machined by CNC center and to use some steel cores and sand cores to form cavities. 2D and 3D drawings are available for machining.
   What is the advantage of permanent mold casting?

A: Have finer dendrite arm spacing (DAS) and grain structure , so have better strength properties than die casting and sand castings, but less porous than die-castings.
B: Have better dimensional uniformity, machining allowances are smaller and holes are accurately located and dimensioned with metal cores.

C: Smooth surface finish is achieved right out of the mold, eliminating secondary polishing operations

   The main parameters of permanent mold casting as below:
Weight :the typical weight range from 50g to 20kgs
Wall thickness:the properly wall thickness is 3—20mm, the minimum wall thickness can be 2 mm for lengths under 50 mm, and some small detailed place can be 1.5mm thickness.
Radius:inside radius= nominal wall thickness, outside radius = 3 x nominal wall thickness
Draft angles:1 to 3º on outside surfaces, 2 to 5º on inside surfaces.
Surface :surface :finish ranges from 2.5 µm to 7.5 µm (100 µin to 250 µin).
   What typical parts are suitable for permanent mold casting?
Typical parts include valve body (air braking system valve and hand brake valve for automotive industry), pump body, wheels, gear housings, pipe fittings and couplers, fuel injection housings, automotive engine pistons, skate truck etc..