Pressure casting
The process involves using a mold cavity to apply high pressure to the molten metal. Molds are typically made from stronger alloys and similar to those used in injection molding.
Sand Casting
Sand mold casting involves creating a mold using sand. The finished product or wooden model is placed on the sand and the sand is filled around the shape of the model. To remove the model before casting the metal, the mold is made in two or more parts. The process includes creating holes and ventilation holes for melting metal and a pouring system. After melting the metal, it remains in place until it solidifies. The mold is destroyed after the parts are removed, so new molds must be made for each casting.
Investment Casting
Lost wax casting, also known as lost wax casting, involves the following processes: wax injection, wax polishing, dipping, dewaxing, liquid metal casting and post-treatment.
Lost wax casting begins with a wax mold of the desired part, which is then coated with a clay mold. The clay mold is then fired to form a ceramic mold. The wax mold melts during baking, leaving only the ceramic mold.
An inlet port is left in the clay mold, through which molten metal is poured into the mold. After cooling, the final part is produced.
Die Forging
It is the forging method that uses a mold in special forging equipment to form blanks. According to different equipment, die forging is divided into hammer die forging, crank die forging, flat forging machine die forging, friction press die forging, etc. the action of a pair of reverse rotary dies. It is a special form of forming rolling (longitudinal rolling).
Forging
Forging is a manufacturing method that involves using a forging press to apply pressure to a metal billet, causing plastic deformation and resulting in improved mechanical properties, shape and size.
Forging is one of the two components of stamping, the other being stamping.
The microstructure is optimized through forging, eliminating defects such as loose casting in the casting process. This, combined with the preservation of all the aerodynamics of the metal, results in forged parts with mechanical properties generally superior to those of castings made from the same material.
Parts subjected to heavy loads and severe working conditions in related machines are mainly made of forged parts, with the exception of simple shapes such as rolled sheets, profiles or welded parts.
Rolling
Calendering, also known as rolling, is the process of forming a metal ingot using a pair of rollers.
If the temperature of the metal exceeds the recrystallization temperature, the process is called hot rolling. Otherwise, it is called cold rolling.
Rolling is the most commonly used method for metal processing.
Pressure casting
The essence of pressure casting is to fill the pressure casting mold cavity with liquid or semi-liquid metal at high speed under the effect of high pressure, and form and solidify the pressure castings.
Low pressure casting
The casting method involves filling a casting mold with liquid metal, which is then solidified under the action of a low-pressure gas.
Low-pressure casting was originally used primarily for the production of aluminum alloy castings, but has since expanded its use to include the production of castings made from high-melting point materials such as copper, iron, and steel.
Centrifugal Casting
In centrifugal casting, liquid metal is injected into a high-speed rotating casting mold, where it is filled and formed into castings under the action of centrifugal force.
The type of mold used in centrifugal casting can vary depending on the shape, size and production volume. It can be made of non-metallic materials such as sand, casting shell or mold, metal, or a coating layer or resin sand layer in a metal mold.
Lost Foam Casting
Lost foam casting combines a foam model similar in size to the desired castings with paraffin wax to form a model set. After painting and drying, the bunch is buried in dry quartz sand and shaped by vibration. The mold is then cast under negative pressure, causing the model to vaporize and the liquid metal to take its position, solidifying to form the castings.
Lost foam casting is a relatively new process that offers almost infinite precision.
The process requires no die, parting surface or sand core, resulting in castings without protruding edges, burrs or draft angles. This also reduces size errors caused by model and core matching.
Extrusion casting
Liquid die forging, also known as direct extrusion casting, involves injecting molten metal or semisolid alloy directly into an exposed mold. The mold is then closed to produce fill flow and shape the outer contours of the part. High pressure is then applied to create plastic deformation in the solidified metal (shell). The non-solidified metal is subjected to static pressure, solidifying under the influence of high pressure to produce the finished product or blank.
There is also indirect extrusion casting, which involves injecting molten metal or semi-solid alloy into a sealed mold cavity using a punch. High pressure is then applied to solidify the metal under pressure and produce the final part or blank.
Continue streaming
Continuous casting is a casting method where liquid metal is continuously poured from one end into a crystallizer and molding material is continuously drawn from the other end.
Design
Cold drawing, also known as cold drawing, is a plastic processing method that applies external force to the front end of a metal billet, resulting in the billet being drawn out of the die hole of the blank section to achieve the shape and desired product size. .
The process is called cold drawing because it is carried out cold.
Punch
Stamping is the process of forming workpieces (part stamping) into the desired shape and size by applying external force to plates, strips, tubes and profiles. This is achieved through plastic deformation or separation using a pressing machine and die.
Metal Injection Molding
Metal injection molding (MIM) is a new type of powder metallurgy quasi-net forming technology that has been introduced into the plastic injection molding industry.
It is well known that plastic injection molding is an inexpensive method for producing a wide range of complex shapes, but the resulting plastic is not very strong. To improve its performance, metallic or ceramic powders can be added to the plastic, resulting in high-strength and wear-resistant products.
Recently, the idea has evolved to maximize solid particle content, with the binder being completely removed during the subsequent sintering process, resulting in densified formation.
This new method of powder metallurgy is known as metal injection molding.
Spinning
Lathe processing is part of machining. Lathe machining mainly involves using a lathe tool to rotate the workpiece through rotation.
The lathe is mainly used for machining shafts, discs, sleeves and other workpieces with rotating surfaces, and is the most widely used machine tool in machine manufacturing and repair shops.
Turning involves cutting the part using rotation of the part relative to the tool on the lathe. Cutting energy is mainly supplied by the workpiece and not by the milling cutter, making turning the most basic and common cutting processing method with a significant position in production.
Turning is suitable for machining rotating surfaces, and most workpieces with rotating surfaces can be machined by turning, such as inner and outer cylinders, inner and outer conical faces, end faces, grooves, threads and rotating forming surfaces. The main tool used is the lathe tool.
Milling
Milling involves clamping the blank and using a high-speed cutter to move across the surface of the blank and cut the desired shape and features.
Traditional milling is used to mill contours and grooves.
NC (numerically controlled) milling machines are capable of processing complex shapes and features.
Milling and boring machining centers can be used for three-axis or multi-axis milling and boring processing, and are mainly used for manufacturing molds, inspection tools, plates, thin-walled complex curved surfaces, artificial prostheses , blades and so on.
When selecting an NC milling machine, it is important to fully utilize its advantages and main functions.
Planning
The machining method involves cutting the part using a planer tool in a horizontal and linear reciprocating motion. It is mainly used for contour machining of parts and has an accuracy of IT9 to IT7, with a surface roughness of 6.3 to 1.6um.
Grinding
Grinding refers to the process of removing excess material from a part using abrasive materials and tools. Grinding is a widely used machining method.
Selective laser melting
In a tank full of metal powders, a high-power carbon dioxide laser controlled by a computer selectively scans the surface of the metal. Wherever the laser passes, the metal surface is completely melted, while the surrounding powder remains in its original state. The process takes place inside a capsule filled with an inert gas.
Selective Laser Sintering
Impression materials processed with infrared lasers are mainly powder-based. The process involves preheating the powder to a temperature just below its melting point and then smoothing it with a toothpick. The laser selectively sinters the powder according to section information in layers controlled by a computer. Once one layer is complete, the next layer is sintered. After sintering is complete, excess powder is removed, creating a sintered part. Currently, the most mature process materials are wax and plastic powders, while sintering with metal and ceramic powders is still under investigation.
Metal Deposition
This process is similar to squeeze casting, but instead uses metal powder that is ejected. The nozzle also provides protection against high-power laser and inert gas during metal powder extrusion. This method is not limited by the size of the metal powder container and can produce larger components directly. It is also suitable for repairing locally damaged precision parts.
Roll Formation
The profiling method involves using a series of continuous structures to shape stainless steel into complex shapes.
The rollers are arranged in a specific order to continually deform the metal until the desired final shape is achieved.
For complex shapes, up to 36 frames may be needed, while simple shapes can be achieved with just 3-4 frames.
Die Forging
The die is used in specialized forging equipment to form a blank and produce forgings.
Forgings produced through this process are characterized by size precision, minimum machining tolerance, complex structure and high productivity.
Cutting and creasing
This technology falls into the erasure category.
The preformed film is placed in the punching machine's male die, which uses a composite die to remove excess material and preserve the 3D shape of the product, ensuring a proper fit to the mold cavity.
Mold cutting
This technology refers to blanking using a cutting die.
The thin film panel or line is positioned on the base plate and the die is fixed to the machine model mold. The machine then uses its power to control the blade and cut the material.
What sets it apart from punching technology is the smoother cut it produces. Additionally, it allows adjustments in cutting pressure to produce indentations, half-cut effects, and other desired results.
This technology also offers the benefits of low-cost mold production, making it more convenient, safer and faster.
