Our manufacturing processes

As a multi-specialist, LISI masters a wide range of technologies in order to identify the best design and select the most appropriate resources for the specific requirements of each customer.

Our research centers guarantee the expertise of LISI in the field of knowledge of materials, forming techniques applicable to metal and plastic, surface and heat treatment. They have extensive resources in the areas of functional analysis studies, design calculation, simulation, prototyping and validation testing.

The combination of the multidisciplinary expertise of the employees of LISI allows us to develop or select the most effective solution for each customer need.

Discover some of our areas of know-how:

Material processing

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Forging/Heading

Forging and heading are manufacturing operations that consist in giving a piece of metal a particular shape. A slug of material is first sheared, and then subjected to a series of heading operations that give it its next or final shape. Heading may take the form of cold heading or hot heading. For hot heading, the metal is first heated before its sheared and shaped.
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Forming

Forming is a manufacturing process that consists in giving a more specific shape to a sub-product. It includes different techniques, including stamping, die-stamping or drawing in the case of hot forming, or bending, drawing, extrusion, wire drawing, drawing, bending and rolling or hammering in the case of cold forming.

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Machining

Machining consists in removing material from a part using a machine tool (lathe or numerically controlled machining center) so as to give it the required shape. Mastery over machining techniques makes it possible to make very high-precision parts.
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Cutting/Bending
Cutting is the metal working process whereby a given profile is cut out of a strip of metal. For instance, it is used to make washers, clips, metal staples and nut and screw cages.

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Plastic injection
Plastic injection consists in filling a mold under pressure with plastic that has been heated till it starts to flow. This technique is used for making complex shapes, in small and large quantities.

Finishing operations

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Heat treatment

Heat treatment consists in a series of heating and cooling cycles to make the structure of materials more even. This is the step that will give the part its final mechanical properties, particularly hardness and strength.
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Surface treatment

Surface treatment consists in a series of chemical treatments. This is the process that will result in the corrosion resistance and running characteristic that are required for the proper fastening of elements.

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Assembly
Assembly consists in assembling different elements, which may be made of plastic or metal, in order to supply customers with preassembled parts. Assembly may be manual or automatic, using an assembly machine or an assembly and inspection machine.
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Inspection

Inspection consists in verifying the conformity of products to the requirements of our customers. Inspection may be manual or automatic, with the help of special machines using vision, contact or other electronic means.

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Discover the R&D trades of LISI

Discover the production trades of LISI

Discover some of our areas of know-how:

Material processing

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Finishing operations

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