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Amada Miyachi Blog

Avoid these pitfalls when moving to a laser welding process

Posted by Geoff Shannon on Thu, Oct 08, 2015 @ 12:30 PM

We often get customers asking us about moving an existing welding procoess to laser welding so they can take advantage of the laser’s great benefits.  I'd like to take a minute to review a few of the potential pitfalls of moving to laser welding, so you might avoid them and make YOUR transition as smooth as possible.

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Topics: laser welding

Plastic welding with lasers - making it work for you

Posted by Geoff Shannon on Tue, Oct 06, 2015 @ 12:30 PM

Lasers are effective tools for plastic welding, even for clear plastics.  The key to success is material selection: it must be a thermoplastic, meaning that it becomes soft or plastic when heated, hardens on cooling, and that process may be repeated.

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Topics: laser welding

A visual guide to optimizing laser peak power & laser pulse width

Posted by Paul Severloh on Tue, Jul 21, 2015 @ 12:30 PM

Today’s post is a visual portrayal of how to optimize peak power and pulse width during laser welding.

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Topics: laser welding

Lasers in manufacturing – 5 trends to keep your eye on

Posted by Geoff Shannon on Tue, Jul 14, 2015 @ 12:30 PM

Laser technology in manufacturing is everywhere, touching our lives in many, invisible ways. For example, lasers are used to cut the material that the airbags in our cars are made of, the glass for our smart phone and tablet screens and the tiny, delicate medical stents used to improve our health and enhance our longevity.  Lasers are used to weld airbag detonators, and the batteries in our handheld mobile devices; to drill engine components for planes; and to mark or engrave all of the above.

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Topics: laser marking, laser cutting, laser micromachining, laser welding

Laser welding basics – CW, pulsed or modulated?

Posted by Geoff Shannon on Mon, Jul 06, 2015 @ 01:19 PM

Lasers create welds by outputting either discrete packets of energy known as pulses or extended output known as a continuous wave. A pulsed laser produces a series of pulses at a certain pulse width and frequency until stopped. Continuous wave (CW) simply means that the laser remains on continuously until stopped. Pulsed Nd:YAG lasers operate in pulsed mode only, diode lasers operate in continuous wave, and fiber lasers can operate in either pulsed or CW mode. 

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Topics: spot welding, laser welding

Laser welding basics: how does laser welding work?

Posted by Geoff Shannon on Fri, Jun 26, 2015 @ 12:30 PM

How do lasers weld?  When laser welding metal, one must first raise the temperature of the metal to a point where the laser's energy can be absorbed by the material. To do this, the laser is focused on the material much like the sun might be focused by a magnifying glass for a science experiment, only the laser’s power density is many orders of magnitude higher, around 106 Watts per square centimeter (W/cm2).

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Topics: laser welding

Tube cutting with a femtosecond disk laser - ROI in less than a year

Posted by Geoff Shannon on Fri, Feb 07, 2014 @ 12:50 PM

Microsecond fiber and pulsed Nd:YAG lasers have been used successfully for hypo tube and stent cutting for many years. The only downside is that cut parts often require a number of post processing operations, depending on material and part requirements.  These additional manufacturing steps can add significant cost; they also add to the handling logistics burden for what, in many cases, are mechanically delicate parts, not to mention the added problem of having to deal with chemical-based processes and the disposal of hazardous waste.

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Topics: laser cutting, fiber laser welding, fibre laser welding, laser welding, laser tube cutting

Bringing Laser Technology In-House: 6 Simple Steps to Success!

Posted by Geoff Shannon on Tue, Aug 20, 2013 @ 08:00 AM

Once the commercial justification for bringing laser technology in house is complete, new to laser manufacturers may still have some technical concerns.  We’ve recently worked on several very successful collaborations with first-time to laser manufacturers to turn their mountains into mole hills.  Now each system is on the floor in production and everyone is wondering what all the fuss was about.

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Topics: laser marking, laser cutting, laser welding

Tips for Laser Micro Welding Aluminum Alloys

Posted by Geoff Shannon on Tue, Feb 05, 2013 @ 10:21 AM

Aluminum alloys, are lightweight, possess good thermal and electrical conductivity, and are relatively inexpensive to work with.  Therefore, it’s no surprise that they are being used with increased frequency in product manufacturing applications ranging from batteries and electronics packaging, to automotive components and consumer goods packaging. Laser welding aluminum, however, is more difficult than welding steels for three key reasons: high reflectivity, surface oxide layer, and volatile alloying elements.

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Topics: laser welding, micro welding, laser micro welding

NASA Partners with Miyachi Unitek for new Laser Welding System

Posted by Barbara Kuntz on Thu, Jan 17, 2013 @ 08:00 AM

Miyachi Unitek is no stranger to patented inventions (at last count, I think the company has 19), and the patent recently issued to NASA raises that number by 1...IMHO.

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Topics: laser welding

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