Case study
Laser welding solutions for mold reparations, mold maitenance and micro-welding
Meccanica Tecnica s.r.l., is a leader company in precison mechanical engineering. The company offers contractor service, so the goal was getting welders capable of meeting a variety of market demands, such as:
• repair molds, bearings, shafts, valve seats and turbine blades
• weld various kind of materials (steel, alloys, aluminium, titanium, cast iron)
• cover as wide renge as possible in terms of weight and size of workable objects
• weld extremely small parts
The only technology that can address all these needs is laser welding, which is successful in many situations because of some of its specific features:
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Insignificant heat input during the deposition of fill material
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minimal deformation of parts and minimal metallurgical damage
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high strength and very high speed
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welding rod very small (few tenths) if needed
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solderability of many materials like steel (even hardeness up to 60 HRC), alluminium, alloys of bronze and copper, titanium
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solderability of materials different from each other (e.g. steel and copper)
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reduced cost per weld in high-volume applications.
Versatility is one of the strengths of Sisma laser welders, which in fact enable them to:
• easily reach particularly difficult places such as grooves or deep holes and working on complex areas such as edges, corners…
• create software-programmed welding paths, following customer-determined profiles and/or paths of regular shapes…
After a careful analysis of requirements and through close discussion with Sisma engineers,
Meccanica Tecnica opted for two laser welders capable of covering almost all the required cases:
• SWA 450F with fiber laser, ideal for mold reparation
• SWT with fiber laser, excellent for micro-welding
The fiber laser has important advantages over a lamp laser:
• no maintenace
• smaller spot, important in edges and for micro-welding
• more power, so higher speed.
SWA Fiber, key features:
• wheeled machine, easy to move to on-site for non-transportable parts
• large telescopic and rotating arm to reach distant and/or awkward points
• optical unit sliding in X and adjustable
• advanced software with tracked routes
SWT Fiber, key features:
• stability and robustness (ability to load up to 120Kg) with 3 axis machine
• ideal for detailed and precise machining
• possibility of working for small series
• ergonomy
• optimized software to ensure process repeatability
• loading of welding recipes, remote diagnostics
Curious about all Sisma applications for welding? Contact us, we will be happy to answer any questions you may have.
