Laser Machine Welding

Laser machine welding is the joining of two pieces of material, usually metal, but often these days plastics, using a laser beam. A laser is a single phase, or coherent beam of light often seen in science fiction movies, but the development of the laser beam and its application in laser machine welding allows for advancements in precision welding using this high-energy device, which creates heat when it strikes a surface. Laser machine welding is used for steam tracing and inspection, for surface heat treating, cutting with heat and other precision applications.

The laser, which stands for light amphlication by stimulated emission of radiation, emits photons in a narrow beam. Laser light usually in monochromatic, meaning that it emits light of a single wavelength. Common light emits incoherent light, which goes in all directions over the spectrum. The first working laser was developed by Hughes labs in 1960, but was descended from work done by Albert Einstein in 1916. However, the laser itself is such a recent development that the use of laser machine welding is a fairly recent technological innovation.

Lasers have found applications in many areas since their invention. Modern medicine utilizes lasers for surgery, having realized the ability to perform less invasive surgical procedures than in the past. Also the fine and precise nature of lasers has led surgeons to use them for such delicate operations as eye surgery. In common practice many people today use laser pointers, especially in the classroom. Marksmen use laser sights on rifles. Computer users use laser printers for output rather than old-fashioned methods, and lasers are used for motion detection and security, among many dozens if not hundreds of other applications. Lasers are even used in children's toys, office photocopiers and in the devices used to lock and unlock car doors. As technology improved lasers worked their way into all aspects of life and it was only natural that applications of lasers to welding technology would occur. The end result of this has been the creation of the laser machine-welding specialty, taking its place next to Mig, Tig, Arc and other welding methods.

Uses of laser machine welding are becoming commonplace in the computer and consumer electronics industry, in space and aircraft technology and with defense contractors. Laser machine welding is often used because it can be much more precise than other welding methods. Laser machine welding is often used for micro welds of hyper small dimensions that conventional welding methods could never touch. Laser machine welding is often used in jewelry manufacturing, engraving, in dentistry, and in the tool and die industry where precision is demanded. Laser machine welding is on the cutting edge of technology, and welders trained to use laser machine welding are some of the brightest and most talented welders in the industry.

Laser machine welding has also found a home in the highly technical and precise welding needs of plastic welding. While plastic welding is often done with ultrasonic welders, many times laser machine welding is the preferred method.

Peter Vermeeren is the owner and webmaster of: http://www.machine-and-tool.com - http://www.kamikaze-portal.com and [http://www.airsoft-got.es]

This post was made using the Auto Blogging Software from WebMagnates.org This line will not appear when posts are made after activating the software to full version.

Laser Hair Removal Information: Which Laser Machine Is Best?

So you've got some hair somewhere that you are just dying to get rid of. Maybe you're sick of shaving it, or maybe you can't even reach to shave it. Waxing doesn't last very long, and most of the other products on the market are either are ineffective or outright scams.

Then there is the laser. Laser hair removal has been available now for over ten years. Significant technological advances have been made since the fist lasers hit the market. Today's lasers are more effective and longer lasting, with several receiving clearance to be marketed for "permanent hair reduction". With all the lasers to choose from, is one laser better than the others, or does your choice of laser even matter?

Hair Removal Lasers: Choosing the Right Equipment

Does your choice of laser affect the ultimate outcome of your treatment? The short answers to these two questions are no and yes. Despite what anyone might tell you, no single laser has been clinically proven to be the best - there simply have not been sufficient comparative trials to establish this. As a result, doctors and clinics tend to promote the virtues of whatever laser they purchased or leased. At $70,000 to $125,000 per machine, you can see why they have a vested interest in promoting their chosen equipment.

Yet while there is not yet a clear-cut winner of the "best laser" designation, certain lasers do work better for people with certain skin types and hair colors. There are several guidelines that are important in helping you choose which laser is right for you.

Laser Safety and Dark Skin: Avoiding Side Effects

The first guideline is this: the longer the laser's wavelength, the safer it is on darker skin and the fewer side effects. The reason for this is that longer wavelength laser energy tends to penetrate deeper into the skin. This is especially important in people with dark or tanned skin. Nd:YAG lasers have the longest wavelength of current hair removal lasers at 1064nm. Nd:YAG lasers include the CoolGlide, the Lyra, and the Athos. Diode Lasers, with the second longest wavelength of current hair removal lasers at 810nm, are also used to treat people with olive to dark complexions. Thus diode lasers are a viable alternative if you cannot find a doctor with an Nd:YAG laser in your area. Popular diode lasers include the LightSheer, LaserLight, and Apex 800.

Laser Speed and Hair Removal Cost: Cutting the Price of Treatment

The second guideline to keep in mind is this: the faster the laser's repetition rate (the speed at which it "fires") and the larger its spot size (the size of skin treated with each laser shot) the faster the treatment. For areas such as the legs or back, it is wise to choose a laser that can cover a large area in short time. Alexandrite lasers like the GentleLase have the largest spots sizes available on the market at up to 18mm. The GentleLase is perhaps the fastest on the market at covering large areas. The Lightsheer diode is also quite fast and represents a good alternative if you have olive or brown skin. Generally, the faster the laser, the less your treatment will cost, so it pays to seek out a speedy laser when treating large areas.

Laser Hair Removal: Treatment of Fine Hairs

Finally, if the hair you want removed is fine or light in texture (as opposed to light in color), you might find that it is less responsive to laser treatment than is thicker or coarser hair. In this instance, Alexandrite lasers such as the GentleLase might be your best choice (unless you have dark skin). The GentleLase has been reported to be particularly effective on fine hairs. Nd:YAG lasers are the least effective on fine hairs, and diode lasers fall somewhere in-between.

Ultimately, you must decide upon a laser in consultation with an experienced doctor, for they are best able to determine your precise skin type. Since many laser hair removal offices and clinics offer free consultations and spot checks, it is usually wise to get the opinions of two or more doctors before choosing a laser and a treatment plan.

By doing your research and finding the right laser for you, you will help ensure that your laser hair removal experience will be a successful one (and you might even cut your costs at the same time).

Jess Miller is a consumer advocate and an editor of Laser Hair Removal Ratings, which includes reviews of Phoenix laser hair removal clinics and Philadelphia laser hair removal clinics.

This post was made using the Auto Blogging Software from WebMagnates.org This line will not appear when posts are made after activating the software to full version.