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Medical Component

Laser Marking Services: Basic Factors And Qualities Problems And More

Today, coding medical equipment and other products are common. Increasingly, laser marking machines (LMMs) take their place on the product packaging line. They provide coding that makes it more difficult to tamper with the packaged goods. Many contract manufacturers include laser marking services as an integral part of what they offer OEMs and other industrial concerns. Laser Marking Options Depending upon how you define the terms “laser marking,” you have three major options from which to choose. These are: Laser Etching Laser Engraving Laser Marking Picking the best method and laser to satisfy the customer can be challenging. While all three are permanent and provide a clear indication, only one option is actually defined by those who work in the business as laser marking. It is not interchangeable with either etching or engraving, although sometimes people transpose the terms using them incorrectly as synonyms. Factors in Selecting Laser Marking Services In choosing the best LMM or method, it is important to look at the factors that will affect the outcome. These include: Material: What type are you marking? What you use for marking plastic differs from specific metals Quality: What quality of mark does the customer require? Purpose: Is this for a medical instrument, a food product or an item requiring less sanitary and fastidious measures? Speed: How fast do you need to mark the items? Uniqueness: How unique must this marking be? Readability: Most products require a very clear and distinctive mark Keeping these in mind will help you and your customer determine which the optimum laser marking system to utilize is. As a result, the specific laser candidates could be: Nd:YAG Nd:YVO4 (vanadate) Fiber lasers Each will have its own advantages and disadvantages in performing specific tasks. It could be ablation, annealing, foaming or any of several other types. Whatever the choice, the selected laser marking services should never interfere with the functionality of the...

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The Advantages Of Wire EDM

There are many different specialized types of processes used in the manufacturing of different components. When it comes to creating shapes from metal plate for tools, dies and components, Wire Electrical Discharge Machining or wire EMD is often the most effective and efficient process to use. The use of wire EMD dates back just over half a century. It was often called spark machining in the past but has also been called wire burning as well. As the name implies, it uses an electrical discharge in the form of sparks to remove specific areas of the workpiece, leaving the desired shape behind. This is done by using two different electrodes that are in a specific type of liquid, known as a dielectric liquid. The electrodes are supplied with a specific voltage that allows the spark or current to pass between the two electrodes. This occurs once the current is at the correct level to travel through the liquid. In turn, the dielectric liquid also flushes out the metal debris. Complex Shapes are Possible With full control of the system wire EMD can be used to create extremely precise and complex shapes. The CNC controls can repeat this process as many times as possible, providing high tolerance manufacturing of these complicated parts in a very cost-effective way. Viable for Many Materials One very important consideration with this technology is that the two electrodes do not actually touch the workpiece, rather it is the current or the spark between the two that removes the metal. This means that metals that are normally very challenging to work with such as thin workpieces or very hard metals are not damaged by the process as may be seen with other machining options. Additionally, there are limited requirements for further surface treatment of the edges produced by the process. Tapered holes, fine holes and round or curved shapes are easy to produce to extremely tight tolerances using this process. While it is slower than other machining options, the specificity and tight tolerances it offers makes it the best option when precision is a...

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