Precision parts all have unique shape, size and performance requirements, and therefore require different machining processes to meet these requirements. Today, let us explore together what processes are required for different types of parts processing! In the process, you will discover that the world of original parts is so colorful and full of endless possibilities and surprises.
Content
I.Cavity parts II.Sleeve parts
III.Shaft parts IV.Base plate
V.Pipe fittings parts VI.Special-shaped parts
VII.Sheet metal parts
I.Cavity parts
The processing of cavity parts is suitable for milling, grinding, turning and other processes. Among them, milling is a common processing technology that can be used to process parts of various shapes, including cavity parts. In order to ensure the machining accuracy, it needs to be clamped in one step on the three-axis CNC milling machine, and the tool is set by centering on four sides. Secondly, considering that such parts include complex structures such as curved surfaces, holes, and cavities, the structural features (such as holes) on the parts should be appropriately simplified to facilitate rough machining. In addition, the cavity is the main molded part of the mold, and its accuracy and surface quality requirements are high, so the choice of processing technology is crucial.
II.Sleeve parts
The process selection for processing sleeve parts mainly depends on factors such as their materials, structure and size. For sleeve parts with smaller hole diameters (such as D<20mm), hot-rolled or cold-drawn bars are generally selected, and solid cast iron can also be used. When the hole diameter is large, seamless steel pipes or hollow castings and forgings with holes are often used. For mass production, advanced blank manufacturing processes such as cold extrusion and powder metallurgy can be used. The key to sleeve parts mainly revolves around how to ensure the coaxiality of the inner hole and the outer surface, the perpendicularity of the end face and its axis, the corresponding dimensional accuracy, shape accuracy and the process characteristics of the sleeve parts being thin and easy to deform. . In addition, the selection of surface processing solutions, the design of positioning and clamping methods, and process measures to prevent sleeve parts from deforming are also important links in the processing of sleeve parts.
III.Shaft parts
The processing technology of shaft parts involves turning, grinding, milling, drilling, planing and other processing methods. These processes can basically meet the processing requirements of most shaft parts. Shaft parts are mainly used to support transmission parts and transmit torque or motion. Therefore, their processed surfaces usually include inner and outer cylindrical surfaces, inner and outer conical surfaces, step planes, etc. When formulating the machining process, certain principles need to be followed, for example: positions close to the tool setting point are processed first, and positions far away from the tool setting point are processed later; rough machining of the inner and outer surfaces is arranged first, and then finishing of the inner and outer surfaces is performed; Make the program flow concise and clear, reduce the probability of errors and improve programming efficiency.
IV.Base plate
CNC milling machines are often used for processing in order to achieve high-precision and high-efficiency production requirements. When formulating the processing technology, it is necessary to determine the appropriate process route according to the requirements of the design drawings. The general process is: first mill the flat surface of the bottom plate, then mill the four sides, then turn it over and mill the upper surface, then mill the outer contour, drill the center hole, and perform hole processing and slot processing.
V.Pipe fittings parts
The processing of pipe fittings usually includes cutting, welding, stamping, casting and other processes. Especially for metal pipe fittings, according to their different processing techniques, they can be mainly divided into four categories: butt welding pipe fittings (with and without welds), socket welding and threaded pipe fittings, and flange pipe fittings. Cutting processing is an important process to complete the welding end, structural dimensions, and geometric tolerance processing of pipe fittings. The cutting processing of some pipe fitting products also includes the processing of inner and outer diameters. This process is mainly completed by special machine tools or general-purpose machine tools; for oversized pipe fittings, when the existing machine tool capabilities cannot meet the processing requirements, other methods can be used to complete the processing.
VI.Special-shaped parts
The processing of special-shaped parts usually requires the use of milling, turning, drilling, grinding, and wire EDM processing processes. These processes can basically meet the processing requirements of most special-shaped parts. For example, for some special-shaped parts with high precision requirements, milling can be used to process the end face and outer circle; turning can be used to process the inner hole and outer circle; drill bits can be used for precise drilling operations; grinding can be used to improve the surface accuracy of the workpiece. and reduce surface roughness. If you need to process molds and parts with complex-shaped holes and cavities, or need to process hard and brittle materials such as cemented carbide and quenched steel, or need to process deep fine holes, special-shaped holes, deep grooves, narrow When sewing and cutting complex shapes such as thin sheets, you can choose wire EDM to complete it. This processing method can use a continuously moving thin metal wire (called an electrode wire) as an electrode to perform pulse spark discharge on the workpiece to remove the metal and cut it into shape.
VII.Sheet metal parts
Common processing techniques for sheet metal parts also include steps such as blanking, bending, stretching, forming, layout, minimum bending radius, burr processing, springback control, dead edges and welding. These process parameters cover traditional cutting, blanking, bending and forming methods, as well as various cold stamping mold structures and process parameters, various equipment working principles and control methods.
GPM’s Machining Capabilities:
GPM has extensive experience in CNC machining of different kinds of precision parts. We have worked with customers in many industries, including semiconductor, medical equipment, etc., and are committed to providing customers with high-quality, precise machining services. We adopt a strict quality management system to ensure that every part meets customer expectations and standards.
Post time: Nov-25-2023