From surface grinding to broader application, holding metal parts with magnets is migrating in general metalworking processes, especially milling. To re-evaluate how they hang on to work pieces, Advances in magnetic technology are causing many shops. Holding solution for your shop, here’s a look at how magnets may be a viable work.
An interesting blend of art and science is the metalworking craft. Behind work holding and Magnetic Chuck, the science in the metalworking shop is fairly basic. To allow metalworking processes such as turning, milling, grinding or drilling to be performed, Hang on to the blank, forging or casting to be machined, with sufficient grip.
The myriad ways that can be used to accomplish the basic science is the metalworker’s art in work holding. Involving many variations of mechanically securing the work piece, traditionally most work holding methods.
In recent years for machining, Magnets have entered the work holding fray as an alternative to mechanically holding work pieces and on the machine tool table, for holding work holders such as fixtures and vises.
In general machine shops, magnets are finding acceptance long an accepted method of work holding in surface grinding applications simplifying their approach to work holding, increasing access to the five sides of a work piece and looking to minimise setup.
Magnets Basics
From our general science class, Most of us remember that ferrous materials are attracted by magnets. Magnetic energy called flux flows through the South and North Pole of a magnet or Magnetic Welding Holder.
One can actually see in the classic experiment using iron filings by the arrangement of the filings, which between the two poles, the magnetic flux flows in roughly parallel arcs. Basically by inducing polarity magnets work into any ferrous material that connects across its poles.
Ferrous components have poles when placed in the magnet flux that are opposite the polarity of the magnet. They attract due to this reason. To applying magnets in a metalworking operation controlling and amplifying this flux is the key.
As the gap between the magnet and the work piece closes, the pull or attraction of the magnet becomes stronger. As compared to rough surfaced, smooth surfaced work pieces are held more tightly. Of how much magnetic flux can be induced into the work piece, the strength of the magnetic attraction is a function.
For magnetism, some materials are better conductors than others. When the Magnetic Welding Holder is switched off, Hardened materials tend to retain some magnetism and don’t absorb flux as easily.
A series of magnetic poles are used to construct the magnetic work holder. The stronger the magnetic grip, in general the more of these poles that engage a given work piece.
When switching poles from on to off or back becomes too great, the mechanical effort required to overcome magnetic friction as permanent magnets are scaled up to provide sufficient surface area to accommodate the demands of machining operations. Because of their safety and reliability, these magnets are well applied for light duty machining.
The most widely used rare-earth magnets are Neodymium magnets.
Made from iron, boron and neodymium alloy, they are permanent magnets like Magnetic Chuck that are to form a tetragonal crystalline structure.
Today as hard disk drives, fasteners and even in motors, you will find the magnets in cordless tools.
Below are Few of the common uses of neodymium magnets are as below.Iron industry uses - in iron industries, these magnets are used especially in lifting huge iron materials from iron dust whereas dust particles are attracted by the weaker magnets.
The magnets are also used as magnetic separators and lift large ferrous items in heavy engineering and manufacturing industries.Medical industry uses - for magno-therapy, the neodymium magnets are used by medical physiotherapists and practitioners extensively to decrease pain.
To wear as bracelets, blankets and shoe insertions, they are also sold as medical devices.Entertainment industry uses - in audio equipment like acoustic pick-ups, microphones, speakers, and headphones, the permanent magnets are used when it comes to the entertainment industry.Home uses - in various ways, such as in hanging pictures, fixing furniture and creating drawer and door closures, the neodymium magnets are used at home.
