In the metal processing industry, surface grinding is one of the most critical links in the entire finishing process. After forming, cutting, and other complex processing, many work pieces will enter this step for further finishing. The procedure of surface grinding is used to produce a smooth finish on a flat or other specific surface with the help of many accessories such as magnetic chucks and tools. It is a widely used abrasive processing technology by which the spinning wheel is covered with rough particles (grinding wheels) that cuts chips of metallic or non-metallic substances from the work piece to form a flat and smooth phase. In all grinding processes, such as cylindrical, internal, center-less, the surface grinding is one of the most common methods in the industry, and until now, among the various grinding procedures.
With a computer-controlled system, CNC grinding is a finishing process that uses a rotational abrasive wheel to smooth the surface of metallic or non-metallic materials to provide a fine physical state by removing layers and impurities under the surface of the work piece that is clamped by either magnetic chuck or conventional chucks. That is controlled by a program-driven computer numerical control mechanism and the tools are also controlled by the CNC.
Clamping systems such as magnetic chuck and conventional chucks are key components in the cutting process of machine tools, and some magnetic-based clamping equipment are very popular due to their special functions. The magnetic chucks or magnetic work holding can be widely used in metal processing because they are suitable for daily use in grinding, milling, EDM and measuring. The magnetic chuck technology enables high precision, distortion-free clamping and longevity. For polishing and grinding, these processes will obtain the required surface to achieve the functional purpose of engineer planning and programming. Regarding the mechanical composition of the equipment, the mechanical structure of the surface grinder is composed of grinding wheel, work piece holding device, and reciprocating worktable.
Between processing, the holding device like magnetic chucks will hold the material in place when processing the material. The clamping mechanism by the equipment can be completed by two methods: one is to fix the ferromagnetic piece in place by a magnetic chuck, and the non-ferromagnetic and non-metallic pieces are fixed in place by vacuum or mechanical means. The clamping mechanism is essential to the entire machining process and magnetic chucks can do it well because only with a strong positioning, and clamping equipment can the work be completed accurately and precisely together with the help of tools. In addition, the key factors affect surface grinding is the material of the grinding wheel and the work piece. Generally, work piece materials include aluminum, brass, steel, cast iron, and mild steel. Some of them are more stable and do not attach to the grinding wheel during processing, while others have different physical properties that can lead to corrosion of the equipment and are not ideal for further industrial usage.
Speaking of the shape of the grinding wheel, the shape is not limited to a specific shape, but may be of various shapes. On-site operators can trim wheels for special usages and purposes. It is worth noting that in the surface grinding process, the shape of the grinding wheel will affect the reverse shape of the work piece. The operator must be aware of the shape change in order to modify the grinding wheel immediately, so that the desired grinding can continue. Since the surface grinder is a machine used to provide precision ground, its purpose may be a specific size or for surface finishing. The typical accuracy of a surface grinder depends on the type and application. However, in most cases, most surface grinders should be able to achieve a certain accuracy value.
A surface grinder is a machine used to provide precision grinding surfaces, either to a critical size or for the surface finish. The typical accuracy of a surface grinder depends on the type and application, but it should be ±0.002 mm on most surface grinders. The grinder is composed of a worktable, which can run longitudinally and cross the surface of the grinding wheel. Longitudinal feed is usually driven by hydraulics, and cross feed is usually driven by hydraulics. However, any combination of manual, electric, or hydraulic can be used depending on the ultimate usage of the grinder, so the function should be clarified in each stage before purchase. A good magnetic chucks, conventional chucks, and tools are critical things to be considered as well.
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