Daily Archives: May 25, 2016

Tips of Collet Chucks Use

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The collet chuck is often taken advantage of by some CNC owners. By this I mean that they are ignored quite often and this can present problems down the road for the operator. Some issues which may arise are tool breakage, poor cut quality and even worse, damage to your expensive spindle.

 

Collet chucks are made of spring steel and the more often a tool change is made the more the collet chuck expands leaving the tool to slip and shift around.

 

The most important portion of the collet chuck is the mouth, which is located at the bottom end from where the tool extends. This area is important because all the lateral pressure taken by the tool must be evenly distributed on all sections of the collet chuck for it to be true or concentric. Not colleting the tool in perfect alignment results in tool breakage.

 

I made of a short set of rules which can help you avoid any problems, achieve good cuts and actually extend the life of your router bits.

 

Right Ways of Collet Chuck Use:

 

  1. Always change and throw away your collet chucks after machining for 400-500 hours. This is 3 months’ time in a normal two-shift operation.

 

  1. You can tell if you require replacement if there are any markings or abrasions on the inside of the collet chuck or on the tool itself. This indicates slippage of the router bit inside the collet chuck.

 

  1. When inserting the bit into the collet chuck do not let the flute fadeout portion of the tool extend into the collet chuck. Insert the shank of the bit 80% into the collet chuck and you will have perfect concentricity.

 

  1. Each time you make a tool change, clean the inside of the collet chuck and the tool itself. Do not use a petroleum based lubricant as it will only act as a magnet for all the dirt and dust by the residue it leaves behind.

 

Rigidity and concentricity are the key elements in any routing application. The simple process of properly colleting router tools, maintaining collet chucks, and replacing them at regular intervals will safeguard the productivity of the operation and insure that the finish of parts is not jeopardized.

 

Autogrip is a professional and experienced manufacturer of collet chucks. If you are interested in collet chucks and other related products, welcome to visit our website to get more information and feel free to contact us!

 

 

 

Article Source: http://EzineArticles.com/5142205

About Orbital Air Sander

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For any sanding or polishing jobs that require an excellent finish, on almost any surface, an orbital air sander is the tool that you need. Orbital sanders have quickly become the tool of choice for anyone wanting to either prepare a surface for painting, or alternatively, to get a superb finish afterwards.

 

An orbital air sander is a flexible and easy to use air tool, which is considered essential for professional auto body repair jobs, and is also the kind of equipment that every hobbyist will want to have in their toolkit in order to ensure that they can do a great job.

 

An orbital air sander features a sanding pad that moves in a random manner around a specific center point. It is this random movement that is the key to the success of the air tool. Rather than with traditional sanding devices such as a belt sander, where the tool leaves a mark on the surface and can lead to an uneven finish, with a random orbital air sander, the finish is even over a much wider area, meaning that the finish that you can expect is much better and smoother.

 

The combination of a circular and random action of the sanding disc on an orbital air sander means that it is able to sand in any direction, cover a larger area relatively quickly, and avoid concentrating too much sanding action on one area. This means that the finish will be more even than with a belt sander or even old style orbital devices that did not have a random aspect to their movement.

 

You can add different sanding discs to an orbital air sander to ensure that it is properly set up for a huge variety of different jobs. From heavy duty sanding paper for tough jobs through to buffing cloths in order to get a final polished finish at the end of the job. With most orbital air sanders, changing the disc takes just a few seconds, allowing you to get a variety of jobs done a lot quicker.

 

Perhaps the most immediately obvious application that an orbital air sander can be used for is in preparing an area of auto body for painting. You would start off with a fairly rough grade of abrasive paper in order to strip back the paint and leave bare metal. Within a couple of seconds, it is possible to change to a finer abrasive in order to smooth the metal out and get it ready for paint. After each coat of paint, an even finer abrasive can be used in order to get a great finish, before the disc on the orbital air sander is changed for the final time and replaced with a buffing cloth to get the perfect finish.

 

Pretty much every power tool manufacturer produces their own version of the orbital air sander, and they range in price from basic inexpensive models that are useful for anyone wanting to do small jobs around the house right up to high quality professional air tools that are designed for the professional auto body shop, and will provide reliable service for years.

 

King Spark, the leading air sanders manufacturer in the industry, providing various type of air grinder, including palm sanders, dual action sanders, orbital sanders, high speed air sanders and more. As an expert of air sander and air tools supplier, we produce only the best products to our clients, which let us having good reputations from clients around the world. Feel free to contact us for more information!

 

Article Source: http://EzineArticles.com/818224

Pulley Block is What?

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A pulley block is an essential component of a pulley mechanism. It functions as the weight-bearing point in the system, which makes the work to be done substantially easier. Pulley blocks, though the name evokes an image of a square, are actually the grooved circles in pulley systems that are used to guide the rope or cable through the pulley. A pulley block is, in fact, the essential component of the pulley system.

 

The pulley is one of the most commonly used simple machines and is one that has been used for centuries. It has been used by numerous civilizations around the world and has been used to construct the most astonishing man-made structures that still stand today. The pulley mechanism doesn’t typically consist of more than three functioning parts, including the pulley block. The pulley blocks within the system is a vital component because it takes the amount of weight from the object being lifted and then turns in place, allowing the cable or rope to be pulled through the system more easily.

 

Also referred to as “block and tackle” systems, pulleys have been used since their creation in hundreds of different instances, and always with the same purpose: to lift objects too heavy to be lifted by human strength alone. The pulley point is determined by choosing a spot higher then both the source of energy pulling the cord or rope that runs through the pulley and the object that is to be moved or lifted. The rope, or high-tensile cable for heavy-duty applications, is then attached to the object to be moved. The other end is either pulled by hand or connected to a device called a winch, which gathers the rope by cranking it around a wheeled sprocket. The rope being pulled through the pulley creates a work point called a fulcrum, which makes lifting the heavy object much easier.

 

The earliest pulley systems were fabricated from wood components with wrought iron pins, though these typically weren’t strong enough for one cable to lift extremely heavy objects. In these early machines, the pulley block could contain up to four blocks, each with its own cord, for even more weight distribution. The pulley systems that are made today from cast iron and steel alloys are exponentially stronger, allowing objects that weigh up to 10 tons to be moved with the use of a winch system as long as the cable used to move the object is rated strong enough to handle the task.

 

The devices described above and related products may be bought at Re Tu Fa Hardware Manufacturer. For more information about pulley blocks, welcome to visit our website and feel free to contact us!

 

Article Source: http://www.wisegeek.net/what-is-a-pulley-block.htm