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17 Ways Of Metal Forming Process

May 14, 2019

Looking at the ordinary "broken iron", in the eyes of mechanical workers, will also be a perfect raw material, they will create a variety of amazing finished products in many ways. ALLES CNC today takes you through several ways of metal forming.

Planing processing ▼ is a cutting method for horizontally reciprocating the workpiece with a planer. It is mainly used for the shape processing of parts. The precision of planing is IT9~IT7, and the surface roughness Ra is 6.3~1.6um.

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Grinding ▼ Grinding refers to the processing method of removing excess material from a workpiece by using abrasives and abrasive tools. Grinding is one of the most widely used cutting methods.

The Bridge type Grinding Machine of the ALGM series produced by ALLES CNC adopts the centralized control of the numerical control system, the servo drive, the rack and pinion rotation and the linear guide of the roller, and the large surrounding structure, which can realize the precise movement of the machine tool and reduce the labor intensity of the workers.


Selective Laser Melting ▼ In a tank filled with

 metal powder, the computer controls a high-powered carbon dioxide laser to selectively sweep across the surface of the metal powder. Wherever the laser goes, the metal powder on the surface layer is completely melted and bonded together, while the place where it is not illuminated remains in a powder state. The entire process needs to be carried out in a sealed chamber filled with inert gas.

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Selective laser sintering ▼ The SLS method uses an infrared laser as the energy source, and the molding materials used are mostly powder materials. When processing, the powder is first preheated to a temperature slightly lower than its melting point, and then the powder is flattened by the flattening stick; the laser beam is selectively sintered according to the layered cross-section information under computer control, and the layer is completed. After the next layer of sintering, after removing all the excess powder after sintering, a sintered part can be obtained. At present, the mature process materials are wax powder and plastic powder, and the process of sintering with metal powder or ceramic powder is still under study.

Metal Deposition ▼ is somewhat similar to the “squeezed cream” type of fused deposition, but the metal powder is ejected. The nozzle also provides high-power laser and inert gas protection while ejecting the metal powder material. This is not limited by the size of the metal powder box, it can directly produce larger parts, and it is also suitable for repairing partially damaged precision parts.

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Roll Forming ▼ The roll forming method uses a continuous set of frames to roll the stainless steel into a complex shape. The order of the rolls is designed such that the roll pattern of each frame continuously deforms the metal until the desired final shape is obtained. If the shape of the part is complicated, up to thirty-six racks can be used, but the simple shape of the parts, three or four racks can be used.

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Die forging ▼ refers to a forging method in which a blank is molded by a mold on a special die forging device to obtain a forged piece. The forgings produced by this method have accurate dimensions, small machining allowance, complicated structure and high productivity.

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Die cutting ▼ That is, the blanking process, the film formed by the pre-process is positioned on the punching die, and the mold is removed to remove the excess material, and the 3D shape of the product is retained to match the cavity of the mold.

The ring die drills produced by ALLES CNC enable fast spindle operation and eliminate unnecessary excess material while ensuring high precision.

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Die-cutting process - die cutter ▼ Die-cutting process, positioning the film panel or circuit on the bottom plate, fixing the die to the template on the machine, and using the force provided by the machine to control the blade to cut the material. The difference between it and the punching die is that the incision is smoother. At the same time, the indentation and the half-break can be punched out by adjusting the cutting pressure and the depth. At the same time, the low cost of the mold is more convenient, safe and fast.

Centrifugal casting ▼ is a technique and method for injecting liquid metal into a mold that rotates at a high speed to fill the mold and form a casting under the action of centrifugal force. For castings used in centrifugal casting, depending on the shape, size and production volume of the casting, non-metallic (such as sand, shell or investment shell), metal or metal coatings or resin sands may be applied. Casting.

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Lost Foam Casting ▼ is to combine the paraffin or foam model similar in shape and shape of the casting into a model cluster, brush the refractory paint and dry it, embed it in the dry quartz sand to vibrate and shape it under negative pressure to make the model gas The new casting method in which the liquid metal occupies the position of the model and forms a casting after solidification and cooling. Lost foam casting is a new process with no margin and precise molding. The process does not require mold taking, no parting surface, no sand core, so the casting has no flash, burr and draft angle, and the core is reduced. Size error caused by combination.

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Squeeze casting ▼ Also known as liquid die forging, a molten metal or semi-solid alloy is directly injected into an open mold, and then the mold is closed to generate a filling flow, reaching the outer shape of the workpiece, and then applying a high pressure to solidify The metal (outer shell) is plastically deformed, the unsolidified metal is subjected to isostatic pressing, and at the same time, high pressure solidification occurs, and finally the method of obtaining the workpiece or the blank, the above is direct extrusion casting; and the indirect extrusion casting means that the molten metal or The semi-solid alloy is injected into the closed mold cavity through a punch, and is subjected to a high pressure to crystallize and solidify under pressure, and finally a method of obtaining a part or a blank is obtained.

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Continuous casting ▼ is a casting method in which a liquid crystal is continuously poured at one end by a through crystallizer, and a molding material is continuously drawn from the other end.

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Pulling ▼ is a plastic working method in which an external force is applied to the front end of the drawn metal to pull the metal blank from the die hole smaller than the blank section to obtain a corresponding shape and size of the article. Since drawing is carried out in a cold state, it is also called cold drawing or cold drawing.

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Stamping ▼ is a method of forming a workpiece (stamping part) of a desired shape and size by applying an external force to a plate, a strip, a pipe, a profile, and the like by a press and a mold to cause plastic deformation or separation.

The CNC punching machine produced by ALLES CNC adopts welded body, the equipment has good rigidity and stable work. The mold change adopts the method of block cylinder, which is accurate and reliable. The main components of hydraulic, pneumatic and electrical are all international famous brands, which increase reliability. Sex.

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Metal Injection Molding (MIM) It is a new type of powder metallurgy near net shape forming technology from the plastic injection molding industry. It is well known that plastic injection molding technology produces various complex shapes at a low price, but The strength of the plastic product is not high. In order to improve its performance, metal or ceramic powder can be added to the plastic to obtain a product with high strength and good wear resistance. In recent years, this idea has evolved to maximize the content of solid particles and completely remove the binder and densify the preform during subsequent sintering. This new powder metallurgy forming process is called metal injection molding.

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Turning ▼ means that lathe machining is part of machining. The turning machine mainly uses a turning tool to turn the rotating workpiece. Lathes are mainly used for machining shafts, discs, sleeves and other workpieces with a rotating surface. They are the most widely used type of machine tool in machinery manufacturing and repairing plants. Turning is a method of cutting a workpiece on a lathe using a workpiece relative to the tool rotation. The cutting energy for turning machining is mainly provided by the workpiece rather than the tool.

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Turning is the most basic and common cutting method, and it plays an important role in production. Turning is suitable for machining rotary surfaces. Most workpieces with rotary surfaces can be machined by turning, such as inner and outer cylindrical surfaces, inner and outer conical surfaces, end faces, grooves, threads and rotary forming surfaces. The tools used are mainly turning tools.



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