COMPETENCES
Mechanical Machining
Among the mechanical machining of the Group you can distinguish the phases of:
turning, milling, grinding, lapping, micro grinding, polishing, EDM (Electric Discharge Machining)
toothing, and accessory operations: deburring/tumbling/sandblasting/washing.
TURNING
Mechanical machining metal chip cutting. Can be horizontal and/or vertical and is done on several raw material types: stainless steeel, steel alloys, alluminum, copper, etc.
The machines park has different machiningtypes with different characteristics to meet the Customers and markets needs:
- Horizontal bi-spindle turnings (Nakamura, Mori Seiki, Citizen)
- Horizontal turnings with fixed or sliding head (Tsugami, Tornos)
- Vertical Bi-Spindle turnings (Famar, EMAG)
- Pluri-spindle turnings (Schuette, Tornos)
MILLING
Through this type of manufactoring is possible to obtain groovings, moulded profiles and very articulated geometric shapes. In the Group there are up to 5 simultaneously working axes machining centres.
- Milling Centers (Chiron, Matsuura)
GRINDING
The grinding machining is one the most delicate phases of the production process as it is a very high precision working in the order of tenths of micron. TFM has cylindricaland flat adjustments.
- Flat Adjustment (Melchiorre, Favretto)
- Cylindrical Adjustment (Bocca & Malandrone)
Achivable tolerances:
- Flatness lower of 1 µm
- Parallelism lower of 1 µm
LAPPING
Lapping is a mechanical operation made on a metallic surface to minimize its roughness reducing in this way all surface irregularities caused by the mechanichal working process such us the material irregularity or the vibrations presence.
- Lapping (Lam Plan, Sunnen)
Achivable tolerances:
- Parallelism lower of 1 µm
- Roughness Ra lower of 1 µm
- Roughness Rz lower of 1 µm
EDM ELECTRIC DISCHARGE MACHINING
Continuous 4 axes machining able to realize complex geometric shapes specially on tempered materials.
- EDM Machining: CR
POLISHING
The essential aim of the process is to increase the fluidity and to reduce the frictions during the parts’ coupling. It is done thanks to specific machining that remove possible surface defects caused by metal chip cutting.
- Polishing Machining (Lam Plan, Rosler)
MICRO GRINDING
High precision operation, known also as fine grinding. It is possible to obtain parts with flatness and parallelism up to tenths of micron. Normally, it is used for two but sometimes also for one parallel flat machining. At the same time, it is possible to obtain the same finishes, typical of the lapping one.
- Micro grinding (Melchiorre, Lam Plan inferiore ad 1 µm)
Achivable tolerances:
- Flatness lower of 1 µm
- Parallelism lower of 1 µm
TOOTHING
The toothing division includes toothing machining (straight conic, Spiral, hypoid, cylindric), Broaching, grinding and accessory operations.
Phases of accessory operations
The external polishing machining and the defects correction
are done to guarantee a very high quality of the final product.
TUMBLING
The tumbling phase is a process used to remove the surface defects caused by previous works. The aim is to obtain a bright surface without defects. This kind of machining allows to work at the same time many pieces guaranteeing a uniform and legal finishing on the whole surface.
We have several ROESLER branded tumbling types with different capacity and dimensions.
WASHING
The industrial washing is needful to remove the impurities (metallic and polluting organic particles) settled on the component surface from previous workings and/or treatments Water and solvent metal washers (modified alcohol) are available.
We can respect high cleaning levels according to standard rules (for example: ISO:16232) and to specific customer requests.
MICRO SANDBLASTING
called also “shoot peening” is a superficial treatment realized on mechanical components to improve the performances during the stress/fatigue. Glass, ceramic or cast iron shots are directed towards the component surface.
The result is a higher resistance to the fatigue/stress and hardness of the treated component.
DEBURRING
It is the process to remove “the burrs” (that is all the exceed material) from previous works. The purpose of this phase is to perfectly remove all the burrs even in the more difficult access points without damaging/compromising the material.
We have ECM (electrochemical) and abrasive paste deburring machining.