Explanation Of Precision Machining

A large number of objects we use every day are made of intricate pieces produced by precision machining. Products for precision machining are usually components that go into the manufacture of other products-both large and small, such as cell phones, appliances , cars and aircraft. These highly engineered precision components are not end products; they go into other products and make it possible to operate other technologies. Companies in this industry make components of high precision-and can manufacture them in small or large quantities, depending on what is required. Checkout Precision Machining for more info.

Using a wide range of precision machining tools, precision machining is applied to a wide variety of materials including plastics , glass, graphite, bronze, and steel among others. A combination of grinders, saws, drill presses, milling machines and lathes is used. It is also possible to implement high-speed robotics, high-velocity machining, photo chemical etching, and milling procedures. Most of these tools are numerically controlled by a computer; this ensures that the exact dimensions of all items produced during the production run are equal.

For its precision components, many industries depend on precision machining. Aircraft aluminum alloys, custom-made automobiles, satellites, bone-drilling tools, dental implants-all use precision parts. Highly-technical industries such as the automotive, dental, medical, military, and aerospace industries and other highly-advanced industries use a variety of precision components as essential parts in the production of their end products.

The best companies in the precision machining industry seek to deliver precisely manufactured parts to the maximum advantage by utilizing the best machining technologies. They employ well-trained technical machinists and engineers who are committed to manufacturing products according to exacting standards of quality. They take pride in their skills including work on the screw-machine, broaching, tapping, and CNC milling and turning.

The best companies stay ahead of the game by using the newest and most up-to-date tooling and machining equipment. Modern automatic rotary deburring machines, horizontal turning centers, and vertical and horizontal machining centers are just a few of the machines they use for production. They are always willing to invest in new and sophisticated machines for the automation and CNC technology to go ahead. They also use the latest software in fabrication and design. Through their fully equipped and powerful software packages such as CAD and CAM, they are able to take on multiple jobs which enable them to build exact 3D models and numerical codes for their CNC machines. The best precision machining firms, leaving no stone unturned, are able to do excellent machining work at low production costs and shortened turn-around time for projects.

Five Axis Machining and Workholding

Five axis machining provides multiple advantages for producing injection molds and is quickly becoming the standard of CNC milling. Workholding is one of the problems associated with 5 axis Friction. How do you keep the workpiece to efficiently rotate the workpiece 5 sides? Checkout 5 axis machining for more info.

Mechanical clamping systems and working-holding magnets are two of the more traditional solutions to 5 sided machining. Investing in a high end 5 axis milling machine and skimping on the workholding makes no economic sense. The maximum benefits can only be realized with proper tooling, realistically.

Mechanical devices are more general, and are essentially like a vise with superior clamping power and reduced contact with the cutting field. With five axis machining and a clamping mechanism in operation, machining of the 5 exposed surfaces is common with a high degree of precision.

Workpieces of small to medium size can be easily held in the clamping system. It is sometimes necessary to use a riser for larger pieces to get to the workpiece.

Because these clamping systems are highly designed pieces of machinery, they apply the clamping forces where they are most important. Additionally, pointed grippers for additional clamping security are incorporated into the vise jaws.

The magnetic solution is also a viable workholding process. One would imagine, at first glance, that the machining forces would exceed the magnetic pull on the workpiece, resulting in the part moving, producing scrap.

Yet this is rarely a problem because many 5-axis machines are capable of using techniques of high speed machining. The system of high speed needs higher spindle speeds, lighter chip loads, and quicker feeds; both resulting in lower torque and cutter strain.

One approach is to install the workpiece on a magnetic pedestal which elevates it and allows all 5 exposed sides to be machined. The pedestal is significantly lower than the workpiece, so all 5 sides are revealed for machining. That eliminates mistake, of course, as the workpiece doesn’t need a second setup to reach all 5 sides.

Palletisation is an added advantage to magnetic workholding. You should transfer the palletized magnet from the 5-axis system to the EDM, gun drill, CMM, or some other system that is set up for pallets in a similar way to EDM pallets.

The magnets used in this manner are electro-magnets which ensures they are electrically powered. If the magnet is triggered there is no need for extra control except to detach the magnet. It is useful during power outages, as well as where the magnetic pallet is transferred from computer to computer.