Are laser cutters dangerous

Answer 1

The truth is that, like many things in life, laser cutting machines will pose a serious threat if and only if the necessary precautions are not taken before, during, and after operation. There are definitely certain risks associated with laser cutters like the potential for toxic fumes (some of which are known to be carcinogenic or irritant to the lungs in other ways), fires, and physical bodily injury that are not associated with other kinds of cutting machines like die cutters. Luckily, there are some quick simple ways to avoid these hazards and to cut projects cleanly and exercising the best practices in safety

Laser cutters have been in existence since the mid-1960s. Initially fiber lasers were used to cut metal exclusively.This use was the norm for a number of years.

Later on in the 1970s, CO2 lasers were invented that would allow for the cutting of thinner materials and other materials that were not comprised of metal like fabrics.

Since that time three main kinds of lasers have been in existence: fiber, CO2, Nd (Neodymium) Nd:YAG (Neodymium-doped yttrium aluminum garnet). CO2 lasers are the most popular type since they can cut such a wide variety of materials, not only metals.

Laser Classes chart

Lasers are classified based on their potential for causing injury — especially eye damage, since the eye is most susceptible to excess laser light.

There are four main classes for visible-beam lasers: Class 2, Class 3R, Class 3B and Class 4. The first two are relatively safe for eye exposure; the last two are hazardous. The chart below shows that the eye injury hazard increases as the laser’s power increases.

Best Practices for Safe Operation

Before using a laser cutter, be sure you have been trained by a qualified individual. A written procedure covering laser cutter use is recommended.

Always follow the manufacturer’s instructions when operating a laser cutter.

Keep a logbook detailing who has used the laser cutter, cutting time, and materials cut.

A fire extinguisher should be mounted on the wall near the laser cutter.

Regular vacuuming of the cutting deck and the internal cavity of the laser cutter is very important for preventing fires!

Some materials such as PVC produce hydrogen chloride gas which is extremely dangerous.  If you are unsure if your material is safe to cut, contact the KASU LASER Office.

Never leave an operating laser cutter unattended.

Avoid placing laser cutters on wooden surfaces.

Know how setting the pulse rate of the laser affects the chance of a fire and the resolution of the cut.

Never defeat laser interlocks built into the cutter. This could allow the beam to escape from the laser cutter.

From KASU Intelligent Technology Co., Ltd.