The purchase of a laser engraver is a great decision for many businesses and is on the wish list of many amateurs. As the name implies, these complicated pieces of technology employ high-power lasers to etch designs on surfaces. Like 3D printers, laser engravers are computer controlled and perform work independently once the CAD design is available. But before buying a laser engraving machine, there are lots of things you should consider first. All these considerations are related to making the right choice when buying a recorder for your business. Here are the things you should think about before making a considerable investment in a laser engraver.

1. How Much Are the Maintenance Costs Going to Be?

The first thing to think about when buying a laser engraver is how much maintenance costs will cost. Though you may find a laser engraver that looks like a real bargain originally, later on you could simply realize that the maintenance of that particular machine will be excessive. This is one of the reasons why it is sometimes better to invest a little more in a high-quality machine.

2. Are Replacement Parts Simply Accessible?

Another main consideration is whether you will have a hard time getting replacement parts for your new laser engraver when it breaks. And it will surely decompose ultimately, despite the machine you select and how carefully you keep it. Eventually, there will come a time when it will be necessary to replace one or more pieces. When this happens, will you have to wait weeks to get the parts you want?

3. Will You Have to Hire Somebody for Maintenance and Repairs?

A few laser engravers are very easy to maintain, which means that the maintenance staff of your company must be able to take care of the essential maintenance of the laser machine. However, some other laser engravers are difficult to perform. These more difficult machines can be extremely hard to repair as well.

In these cases, your business will have to hire a technician to perform the maintenance and repairs of the laser engraver. This costs of the company’s extra money that should be included in the purchase decision. That is why it is better to look for a laser engraving machine that is simply maintained by your maintenance staff. Click here for more information.

4. Can You Use the Laser Engraver?

It is very good to buy a laser engraving machine of quality, economic and easy maintenance. But will someone on the staff have the experience to use the machine of your choice? You do not need to make a key investment in a laser engraving machine just to discover that none of your people recognize how to use it.

When it turns out that none of your employees is known with any laser engraving machine, one or more maintenance staff members will have to take courses that cover the machine you buy. This must include security procedures. Surely, it is cheaper and easier to buy a machine that is familiar to at least one person who works for you. In addition, you can make your machine vigorously produce for you much earlier, so you can begin to recover your investment.

October 20th, 2018

Posted In: Cutting Ideas

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In spite of being the oldest form of gas lasers, CO2 laser cutter are still considered one of the most valuable types of lasers. Also, it is included in the list of supposed versatile lasers since it is actually helpful in several applications and procedures. It is made of a combination of various chemical components. Apart from carbon dioxide, nitrogen and helium are present at the outlet as well. The ratio of these 3 components is 9.5: 13.5: 77. These have various roles to play in the technique. It is in nitrogen where the energy is engaged before it ignites carbon dioxide. Since CO2 produces a laser, nitrogen carries on igniting it. The role of helium is seen through the process of heat transfer.

Different Types of CO2 Lasers

The basic types of carbon dioxide lasers are divided into three. First, there is the axial gas flow that pumps the mixture of carbon dioxide, helium and nitrogen from one end of the tube before it exits towards the other. To ensure that the flow is maintained well, carbon dioxide is continuously pumped into the pipe. The role of helium and nitrogen in the procedure is to improve efficiency. The length of this carbon dioxide laser can be condensed with the help of folded optical methods. Also, there is a CO2 laser cutter of transverse gas flow. The gas flow for this technique is horizontally done. A third type well-known as the sealed tube is available as well. This is just same as the sealed argon and krypton lasers sealed with helium and neon. It is not filled during the process.

Different Construction Materials for CO2 Lasers

In addition to these types are various construction materials to take into account. The mirrors, for instance, use silicon, gold, and molybdenum, all coated. For windows, germanium and zinc selenide are used in construction. In some cases, the diamond can be used in the production of windows or mirrors. Some of the traditionally produced optical elements were made of sodium or potassium chloride. Currently, these materials are no longer used because, in spite of their low cost, production degrades rapidly, in particular when there is moisture in the atmosphere.

Benefits of CO2 Lasers

The cutting quality of a CO2 laser remains constant in all ranges of material thickness, while a fiber laser is a better cutter in the range of thin material, but begins to lose the quality of cutting when the thickness of the material exceeds 5 mm. Although fiber optic provides performance advantages in the range of thin material, CO2 lasers surpass them when the thickness of the metal that is cut exceeds 5 mm. While this can be true when comparing most fiber lasers to CO2, in several units the common consensus of fiber cut quality can vary. In 2kW IPG’s fiber laser units have been shown to reach a cutting quality equal to or better than the CO2 laser up to 12 mm in mild steel. With this thickness, the laser cut at the similar speed as CO2 and the power consumption per cut was even lower using fiber technology. Check this site.

Conclusion

In general, CO2 laser cutters are used in cutting, engraving, and heat treating, as well as welding. In addition, they are significant in the production of cardboard, fabric, paper, plastics, wood, and ceramics. They can also be used in medical fields especially in the world of dermatology. Dermabrasion, laser surgery, and skin rejuvenation are some of the examples in this application.

June 3rd, 2018

Posted In: Cutting Ideas

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Laser cutting is used to cut any number of items from a variety of materials, such as clock faces, jigsaw puzzles, metal tags, packaging, machinery parts and components, signs, leather upholstery pieces, patterns, and more.

According to Coherent, a company that manufactures laser cutting machines, laser cutting may:

“… Concentrate a greater amount of energy towards a small and well-defined identified spot. The heat energy result, created through the laser, will vaporize the  materials in it as a small-defined place and gas, and/or a mixture of different  gases, like CO2, Oxygen, nitrogen, or even helium is then used in blowing out the material that was being vaporized by the kerf. The energy of the beam is applied right away and directly to where it is really needed, minimizing the HAZ or the Heat Affected Zone.”

Laser cutting is a process where a laser beam is used to heat a piece to the point where it is precisely severed. According to Answers.com, laser machines include a high-powered laser and a computer to direct the laser beam onto the material to be cut. From there, the laser beam melts, vaporizes, or burns the material along the predetermined cut line, resulting in a precise, neatly cut edge.

Laser Cutting Applications

Laser cutting is used by manufacturers, small businesses, schools, and hobbyists alike. According to Coherent, common items suitable for laser machine include:

  1. Thicker non-metal materials– You’ll need a laser cutter with an average power of between 250 to 500 watts (up to 1500 watt peak power) to cut thicker non-metal materials such as thicker plastics and wood up to one inch thick. In general, lower power lasers will have to work harder to make the same cut. This reduces cutting speed and can result in excessive heat, chemical changes, or damage to the Heat Affected Zone.
  2. Thin and non-metal form of materials– Fabrics, most plastics, papers, polycarbonate,  mylar stencils, wood that up to.04 more inches, and thin acrylics can be cut with a 150 watt average power (450 watt peak power) laser.
  3. Metal materials– Metal materials generally require higher power lasers between 150 and 1,000 watts (up to 2500 watt peak power). Some thin metals (such as stainless steel or cold rolled steel) can be cut with 150 watt lasers when oxygen-assist gas is used.

When it comes to cutting metal, wood, glass, and other hard surfaces, it’s hard to imagine a beam of light being able to keep up with a spinning blade. A traditional beam of light would indeed have a tough time. That said, a concentrated laser beam makes cutting a breeze. for additional tips, learn more information at http://hackaday.com/2017/07/12/laser-cutting-orreries/

Advantages of Laser Cutting

Laser machine do not wear due to cutting, resulting in less strain on the cutting equipment. Laser cut edges are clean. In addition to cutting items, lasers can also cut small, highly detailed holes with good edge quality.  The laser machine has come of age and are proven to be a reliable, advantageous alternative to other cutting methods.

Finally, laser offers numerous advantages over other types of cutting. Not only can you cut a variety of materials such as paper, plastics, cardboard, leather, and metal, lasers are extremely precise. Once a pattern is programmed into a laser cutter, it will continue to cut an exact copies piece after piece.

July 18th, 2017

Posted In: Cutting Ideas

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