Groupe AIM (AIMM-AIMB-AIMS-AIMI)

Stamping

Stamping is a manufacturing technique for obtaining, from a flat sheet metal and thin, an object whose shape is not developable. The schematic sheet is called "blank" is the raw material that has not yet been stamped. The deformation temperature is between one third and half of the melting temperature of the material. Stamping is a manufacturing process widely used in the automotive industry in domestic appliances, etc…

Principe

The principle is based on the plastic deformation of the material (usually metal), deformation consisting of a stretch or shrink a local sheet metal to a desired shape. As a result of the overall conservation (at least approximate) the volume of the material, areas stretching undergo thinning (which must be limited to avoid breakage) and areas of necking (compression) show a combination of thickening and fold: it generally seeks to avoid this last effect, but it can never be completely absent and is therefore seeking to move into parts of sheet metal that will eliminated later in the manufacturing process.

Tools

The drawing is done using stamping presses high power equipped with special tools which include, in principle, three parts :

matrix, hollow, the shape of the outer part

a punch in relief, his wife by booking form inside the thickness of the sheet

a blank holder surrounds the punch, applied against the periphery of the matrix and serves to sandwich the sheet during application of the punch.

reeds are sometimes used to halt the slide plate (retention Steel)

The entry of the matrix must be very rounded and polished to avoid tearing of metal and to optimize the performance areas Shrink - no angle must be sharp and perfect surface is crucial: the development of such tools is a very specialized and very expensive parts including aspect (example: for several months outside of a door, bonnet etc ...)

Source : Wikipédia

Press brake

A press brake is a machine tool used to bend sheet metal sheet, it consists of a punch (cons-ve) and a matrix form of V (Ve); sheet is between the fifth and cons-Vee and the Vee-cons down when forming the fold.

Types of folding

There are two main types of folding:

The folding in the air: the cons-descended into the Vee Vee until the sheet is in the bottom of the Vee. There is conservation of the elasticity of the sheet.

The folding strikes: the cons-Vee enters the sheet, which has the effect of removing the elasticity of the sheet.

The tools

The tools are selected based on the thickness of the sheet to bend and the angle of the fold provided.

1 The width of VE should be between 6 to 10 times the thickness of the sheet to bend;

2 The angle of the Vee-cons varies depending on the type of folding:

By folding in the air, we use a cons-ve of 88 ° to make a fold at 90 ° to compensate for the elasticity which tends to re-open envelope;

By folding typing, use a cons-ve 90 ° since the elasticity is almost zero.

Source : Wikipédia

Laser cutting

The laser cutting is a manufacturing process that uses a laser to cutting material (metal, wood ...) thanks to the great amount of energy concentrated on a very small area.

The laser can be pulsed (source type YAG) or continuous (CO2 source). Currently, the CO2 laser source is a large majority in France. They make it possible to cut many more materials and speed higher than pulsed lasers.

Principe

The focusing properties of the laser can heat up to vaporization a small area of material. Lasers are commonly used power 1500 watts but the sources may vary from a few watts to more than 4 kW. The power is adjusted depending on the material and thickness to be cut. In comparison, laser class II has a potentially dangerous power of less than 1 mW.

This process allows for precise cutting, clean and fast many materials up to 25 mm. The cutting is done without effort on the part and the heat affected zone (HAZ) is quite low (about 0.5 mm on the metal) which can be Rooms very little deformed. Achieving hole is easy but their diameter must be at least equal to the thickness of the sheet. In some cases, it is necessary using an additional gas in the area of cutting to improve efficiency (argon, nitrogen, O2). Often, it is also possible to write (text, etc..) With the same machine.

Some materials like aluminum or silver, or copper, however, are harder laser cutting because of their high reflectivity.

Source : Wikipédia

A real vocation for industry

The AIM (Alliance Industrielle Métallurgique) Group, specialists in the transformation and assembly of flat metal, can manage your industrial projects from the writing of technical specifications right through to the end of the manufacturing life cycle. AIM therefore goes beyond just handling the production phases and is an industrial company in its own right.

Technical Expertise

Cutting and Drawing (Automatic presses - Mechanical presses - Hydraulic Presses )
Stamping - Laser - Bending - Waterjet
Robot welding
Assemblies
Treatments, painting, finishing
Mechanical and electrical integration and automatism

Phase 1 : Writing of technical and industrial specifications
Phase 2 : Manufacture of prototypes, tooling and EI parts
Phase 3 : Implementation of resources necessary for series
Phase 4 : Optimisation of series during life cycle
Phase 5 : Adaptation of tools and processes for end of life

Service

• 4 industrial companies at your service, each with specific and highly complementary expertise: AIMB, AIMM, AIMS and AIMI.

• A concrete understanding of the specific complexities of each of our customers' sectors: automobile, heavy goods, heating, white goods, furniture, office equipment, telecommunications, industrial equipment, etc...

• High capacity plant and industrial capabilities.

• An international operation: exports to Asia, North America, Latin America and Europe.

Competitivenesses

Thanks to AIM's average investment rate of around 7% of annual turnover, and ISO 9001 and ISO TS 16949 certifications, you can rely on a very high level of performance.

Technical and technological innovation, the Group's priority, is therefore totally dedicated to meeting customer expectations.