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Amada Miyachi Blog

Laser welding, marking, cutting? Top 2 safety questions answered!

Posted by Barbara Kuntz on Thu, Sep 13, 2012 @ 09:03 AM
I get a lot of queries on laser safety topics in my role as laser safety officer at Miyachi Unitek, but I would say the two most frequently asked are:
  • What is the difference between a Class 1 and a Class 4 laser, and what are the safety requirements for each?
  • Which laser safety glasses should I use?

These are legitimate concerns, because even small amounts of laser light can result in permanent eye injuries, and higher power lasers can burn the skin as well.  And don't be fooled into thinking that you're safe just because you can't see the laser light - infrared lasers are particularly hazardous, since the eye's "blink reflex" is triggered only by visible light!

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Topics: laser safety, laser marking, laser cutting, laser welding

4 Tips for Laser Beam Focus & Delivery

Posted by Geoff Shannon on Thu, Aug 30, 2012 @ 08:00 AM

I find that manufacturing engineers tend to devote a lot of energy to thinking about the laser, motion, tooling and process, while overlooking both the laser beam focus and delivery to the workpiece. So, I thought I’d take some time to to review some best working practices for the implementation, standardization and maintenance of optical delivery components, which I firmly believe are key to the manufacturing equation. In a later post, I plan to give you my thoughts on applying this to maintaining high production yields and troubleshooting methods.

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Topics: laser welding

Laser welding tip: 4 simple steps for finding laser beam focus

Posted by Geoff Shannon on Tue, Jul 17, 2012 @ 06:00 AM

How do you quickly find laser beam focus?  The first step is to establish the z distance for the position of focus, and the fastest way to do that is to make a series of spot welds in the z axis, through the focus, using thin shim stock, and then visually observing the level of penetration on the underside. Usually, 0.01-inch thick shim stock will do the trick.

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Topics: laser welding

Fiber Laser Micro Welding: Single Mode or Multi Mode?

Posted by Geoff Shannon on Thu, Apr 05, 2012 @ 02:11 PM

Fiber lasers come in two flavors: single mode and multi mode.  What are the differences and which should you choose for your fiber laser micro welding application? 

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Topics: single mode laser, multi mode laser, fiber laser welding, fibre laser welding, laser welding, micro welding, laser micro welding

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