Types of Surface Grinding
Written by webtechs

Types of Surface Grinding

Surface grinding is the most general kind of grinding method. It is a staple in heavy industries in which varying types of metal and non-metal material need to be smoothed and refined as a finishing method. This is usually seen in automotive industries.

A surface grinder comprises a table, overhead, which is held the grinding wheel. A tool called a chuck holds in place the item being worked on, commonly called a workpiece. Chucks can be vacuum, magnetic, or mechanical, subject to the workpiece materials composition.

There are 3 primary types of surface grinders: vertical-spindle, horizontal-spindle, and single and double-disc grinders. Each of them is well suited to certain materials. The basic difference is in how the grinding wheel comes in contact with the workpiece. In addition to the various surface grinding types, there are also work holding devices.

Vertical-Spindle Grinders

Vertical-spindle grinders, or wheel-faced grinders, are usually used for quick removal of material. The grinding wheel’s face is then lowered onto the workpiece underneath it. These grinders work ideally for gears, wafers, stators, rotors, inner rings, inner plates, and stops and spacers.

Horizontal Spindle Grinders

Horizontal-spindle grinders, also known as peripheral grinders, work perfectly for high-precision work, like tapered or angled surfaces and grooves or deep-set surfaces. The flattened edge of the wheel -the periphery- comes in contact with the material. Pistons, pins, connecting rods, and bearing tracks are instances of components ground using this kind of device.

Single and Double Disc Grinders

Single and double-disc grinders turn up in both vertical and horizontal-spindle configurations. These grinders have a larger area of contact between the grinding surface and the piece being worked on and can grind each side at the same time. Many rotors, spacers, plates, gears, and washers can be placed into disc grinders.

Work-Holding Devices

Metal workers frequently use these devices when using surface grinders. These devices assist in guaranteeing precise grinding and aid in preventing injury and contact with the grinder. One of the more often used devices is a magnetic chuck. Differing chucks are utilized in grinding and many other metal working methods.

Surface Grinding Applications and Techniques

Sanding. This is one of the more general utilizations the surface grinder meets. It can manage various sanding projects, from rough sanding and removal of burrs to sanding that is fine enough to precisely modify the measurements of your workpiece.

Polishing. The step following sanding is polishing, and surface grinders are adaptable enough to fulfill this also. If you are wanting to further smooth down a rough surface, polish, or buff, you can modify the grinder to do so.

Finishing. After you are done welding or metal working and require those last couple of touches to your project, the surface grinder can produce the ideal finish or refinish. Double-disc grinders are especially useful for this project since they can work several areas of a workpiece at the same time.

Cleaning. Surface grinders additionally clean and remove undesirable buildup from the materials. For instance, a grinder can remove rubber, welding marks, and possibly corrosion without damaging the material. If you want to merely strip paint off some of your materials, surface grinders are a great tool for the project.

Surface Grinding Services Phoenix

East Valley Precision offers surface grinding services near Phoenix & Chandler, Arizona. Contact East Valley Precision today!

What is Surface Grinding
Written by webtechs

What Is Surface Grinding?

The process of surface grinding is utilized to create a smooth finish on a flat surface. It is a universally utilized abrasive machining method whereas a spinning wheel coated with rough granules, cuts slivers of non-metallic or metallic substance from work pieces, turning the face of it smooth and/ or flat.

Surface Grinding Process

Surface grinding is one of the more general of all the grinding processes. It is a finishing process that utilizes a spinning abrasive wheel to smooth a flat surface on metallic or non-metallic substances to provide them with a more polished look by eliminating the impurities and oxide layer on work piece surfaces. This is going to also achieve a desired surface for functional purposes.

A surface grinder is comprised of an abrasive wheel, a workholding instrument referred to a as chuck, and a rotary or reciprocating table. A chuck is going to holds the substance in place while it is getting worked on. It can do accomplish this in one of two ways: ferromagnetic parts are kept in place by a magnetic chuck, whereas non-ferromagnetic and non-metallic parts are kept in place by mechanical means or vacuum. Machine vises (made out of cast iron or ferromagnetic steel) placed on the magnetic chuck can be utilized to hold non-ferromagnetic workpieces when only a magnetic chuck is available.

Factors to think about in surface grinding are the materials on the grinding wheel and the substance of the piece that is being worked on.

Materials Used

Common work piece materials comprise of mild steel and cast iron. These two don’t tend to clog the grinding wheel when being worked on. Other materials are aluminum, brass, stainless steel, and some plastics. While grinding at higher temperatures, the materials tend to become weaker and is more prone to getting corroded. This might also result in a loss of magnetism in materials in which this is relevant.

Grinding wheels are not restricted to being a cylindrical-like shape and can have a plethora of options that are useful in the transference of various geometries to the object that is getting worked on. Straighter wheels can be equipped by the technician to produce customized geometries. When surface grinding objects, the technician needs to remember that the shape of the wheel is going to be transferred to the material of the object somewhat to a reverse image.

Spark out is terminology used when standard precision is desired and specifically means “until the sparks are out” It involves transferring the work piece under the grinder, devoid of re-setting the depth of cut. This guarantees that any discrepancies in the machine or workpiece are eliminated.

Surface Grinding Equipment

Surface grinders are machining tools utilized to produce precision ground surfaces, either to a vital size or for the finished surface.

The common precision of a surface grinder is subject to kind and usage, nevertheless ±0.002 mm (±0.0001 in) should be possible on most grinders.

The machine comprises of a table that traverses both lengthwise and across the wheel’s face. The lengthwise feed is typically powered by hydraulics, as might the cross feed, nevertheless any combination of electrical or hydraulic, hand may be used subject to the ultimate usage of the machine.

The grinding wheel spins in the spindle’s head and is also modifiable for height, by any of the techniques described above. Today’s surface grinders are semi-automated, cut depth and spark out might be pre-set as to the number of passes and once set up, the machining process requires very little technician involvement.

Subject to the work piece material, the work is generally kept by using a magnetic chuck. This could be either an electromagnetic chuck, or a hand operated, permanent magnet kind of chuck.

The grinder has provisions for the application of coolant in addition to the withdrawal of metal dust.

Surface Grinding Services Phoenix

East Valley Precision offers surface grinding services near Phoenix & Chandler, Arizona. Contact East Valley Precision today!