Simmonds, Over 70 Years of Cold Forging Expertise

Why Cold Forge With Simmonds - Cost Effective Manufacturing

View our Cold Forging Capabilities here

Economic use of materials: Less material waste.

Higher quality parts: By forging the component, the grain structure deforms to the shape of the component resulting in no shear planes. The enhanced grain structure of the metal makes the component stronger and less prone to failure.

Design to Cost: Our engineering expertise and in depth knowledge of each stage of the cold forging process enables us to work towards meeting your cost saving targets whilst maintaining product quality and performance.

St Cosme - The Home of Simmonds Cold Forging

Our extensive manufacturing facility in St. Cosme, France, boasts a range of cold forging machinery. Designed for varying processes and volume runs, it produces complex parts to our customer requirements in numerous materials.

We form the component part as near to net shape as physically possible from wire or rod. Detail that cannot be forged is then processed using one or a series of the following secondary operations:


Secondary Operations at St Cosme

  • Machining
  • Tapping
  • Threading
  • Crimping
  • Stamping
  • Heat Treatment
  • Surface Treatment
  • Assembly
St Cosme Cold Forging Capability Summary
Machinery 8 Cold forging machines:
From 5 stage, 120 tonnes to 6 stage, 600 tonnes
Materials Low carbon steels, 21MB4 & 35CD4, Stainless steel, Aluminium alloys,
Maximum Diameter 55mm
Maximum Length 80 - 100mm or more - depending on complexity of the part
  • Step 1 Step 1
    Blank cut
  • Step 1 Step 2 Forming of the 2 flat surfaces
  • Step 1 Step 3
    Hole building
  • Step 1 Step 4 Base and welding plots
  • Step 1 Step 5

Precision Screw Machined Parts

As well as cold forging we have also an extensive screw machining capacity at our St Cosme facility including high precision CNC machines.

Our screw machining capability, special nuts and engineering experience offers our customers the ability to have cost effective, high quality, complex parts made to tight tolerances.

Our screw machining ability compliments our cold forging process offering you a wider range of finished part possibilities as a secondary operation.

Our capacity to screw machine hard alloys solves the need to have high precision parts or special nuts that can cope with extreme temperatures.

St Cosme Cold Forging Capability Summary
Machinery Mono Spindle Screw Machines
Max Diameter: 12mm
  Multi Spindle Screw Machines
Max Diameter: 60mm
  CNC Mono Spindle Screw Machine
Max Diameter: 13mm
  CNC Multi Spindle Screw Machines
Max Diameter: 20mm
Materials Steel, stainless steel, aluminium, brass, Ni alloys
  • Step 1 Step 1
  • Step 2 Step 2
  • Step 3 Step 3
  • Step 4 Step 4
  • Step 5 Step 5

See how we have met and exceeded customer expectations with our cold forging and screw machining expertise.