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Welcome to

Welding Applications

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LASAG is located in Thun, Switzerlandwith subsidiaries in USA, Germany and Japan

The Company

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Lasers are Universal Tools

Ø Fine Drilling

Ø Scribing & Ablating

Ø Precision Spot & Seam Welding

Ø Precision Cutting

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Core Markets of LASAG

Ø Electronics

Ø Aerospace and other industries

Ø Automobile Industry

Ø Medical Device Industry

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Lasers are Universal Tools

Laser applications powered by LASAG are manifold. New applications are being developed every day.

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LaserPrecision Welding

Application Ranges

ØWeld penetrations 40 µm … 5 mmØ Minimum spotweld diameter of 40µm

Ø Minimal heat input / thermal deformation

Ø Highly strength and vacuum tight welds

Ø Joining of similar and dissimilar materials

Ø Feed rates depending on material, penetration and width

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Principle of Laser Welding

Laser welding is the process of joining materials by laser lightwithout using additional materials.

The solid state laser delivers a controlled energy into the material within a short time resulting in a minimal heat input.

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Precision Welding of similar & dissimilar MATERIALS

Ø Stainless and high alloyed steel

Ø Tungsten and molybdenum

Ø Precious and nonferrous metal

Ø Aluminum and titanium

Ø Tantalum, nickel, niobium and beryllium

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SEAM versus SPOT Welding

Ø Percent overlap determines strength of weld and seal quality

Ø Structural welds 50%-60% overlap

Ø Hermetic welds 85%-95% overlap

Ø Cross section at interfacedetermines strength of weld

Ø Multiple spot welds for higher strength

ØWelding depth determined by peak power of laser pulse

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Precision SPOT Welding of electrical connections

300 micronPrecision joining of

Ø Connectors, sockets, relais

Ø TV tubes, storage devices

Ø Optoelectronical components

Benefits

Ø Low heat input

Ø high throughput

Ø high repeatability

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Packaging of electronical components

300 micronTight welding of

Ø Batteries, sensors

Ø Hybrid casings

Ø Transponder

Benefits

Ø vacuum tight welds

Ø high throughput, low distortion

Ø high repeatability

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Spot welding of heatsink to Copper leadframe

Ø high speed welding

Ø tight weld, good repeatability

Ø 6 welds / part & 20 / s

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Cosmetical Welds of medical implants and tools

∅ 0.04 mm

Ø controlled heat input

Ø good biomedical acceptance

Ø smooth weld seams

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Precision Spot Welding of fine mechanical parts

laser spot diameter 0.10 mm

Ø very low heat input

Ø needs highly repeatablelaser output

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Precision Welding of car components

Ø high reliability welds for safety issues

Ø short cycle time

seam weld

Lamda- Airbag ignitorSensor

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LASAG AG sets the standards for quality and dependability.

In 1990 LASAG was the first laser manufacturer, worldwide, to be certified according to ISO 9001 standards.

Quality – Swiss made

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Worlwide Service – tailored to your needs

USAArlington Heights, IL

Switzerland GermanyThun Pforzheim

JapanTokyo