What are the machining processes?
The machining process is a key manufacturing method used to transform raw materials into required parts and products. These processes include milling, turning, drilling, grinding, reaming, stamping, forging, injection forming, electrical discharge machining, heat treatment, welding, stretch forming, powder metallurgy and 3D printing. The following are some common machining processes:
1. Milling
Milling is a common machining process that involves rotating a tool over a workpiece to remove material to create a flat surface or create complex geometries. Milling can be divided into CNC Milling and Manual Milling.
CNC Milling: In a CNC milling machine, a computer program controls the movement of the cutting tool so that it cuts the workpiece accurately. This method has a high degree of accuracy and repeatability and is suitable for manufacturing complex parts.
Manual Milling: Manual milling typically requires an operator to manually control the milling machine. Although the accuracy is affected by the skill of the operator, it is suitable for some simple tasks. Milling machines mainly process workpieces fixed on the workpiece table through rotating tools. They are suitable for processing flat surfaces, grooves, various curved surfaces or gears.
2. Turning
Turning is a process for rotationally symmetric parts by rotating the workpiece and moving a tool along the workpiece axis to remove material and create the desired shape. Turning can be divided into CNC Turning and Manual Turning.
CNC turning: In a CNC lathe, a computer program controls the movement of the tool so that it makes precise cuts along the workpiece's axis of rotation. This method is ideal for manufacturing axisymmetric parts with high precision and efficiency.
Manual turning: Manual turning requires the operator to manually control the lathe. Although not as fast and accurate as CNC turning, it can still be useful in specific applications. Lathes mainly use turning tools to perform linear or curved translational motion processing on rotating workpieces, and are suitable for processing shafts and rotary parts.
3. Drilling
Drilling is the process of creating a hole or aperture in a workpiece. Usually a drill is used for processing. This process is widely used in the manufacture of a variety of products, including mechanical parts, building structures, and electronic equipment.
4. Grinding
Grinding is a process used to precisely remove material and achieve high-precision surface quality. It is commonly used in high-precision parts manufacturing, such as in the aerospace and automotive industries. Grinding uses a grinding wheel to cut a workpiece, usually rotating at high speeds. The grinder mainly uses a high-speed rotating grinding wheel to grind the plane, outer circle, inner hole, and tool of the workpiece. The surface roughness of the processed workpiece is particularly high.
5. Broaching
Reaming is a process used to create internal or external gears, cutting grooves and other complex contours. This is commonly used when manufacturing gears, turbine blades and other parts.
6. Stamping
Stamping is a process in which metal sheet or strip is cut, formed or punched by a punch on a punch machine. This method is commonly used to manufacture parts, casings, and metal products.
7. Forging
Forging is a process that changes the shape of metal by applying high temperatures and pressures to it. This is typically used to make parts with high strength and high wear resistance, such as engine parts and tools.
8. Injection Molding
Injection molding is a process used to produce high-volume plastic parts. It involves injecting heated plastic into a mold, allowing it to cool and harden into the desired shape.
9. Electrical Discharge Machining (EDM)
EDM is a process that removes material by inducing electrical sparks between the workpiece and an electrode. It is suitable for manufacturing complex parts and work with high hardness materials.
10. Heat Treatment
Heat treatment is a process that changes the properties of a material by controlling its temperature and cooling rate. It improves the material's hardness, strength and wear resistance.
11. Welding
Welding is the process of joining two or more parts into a whole. It is widely used in the manufacture of structures, pipes and various equipment.
12. Stretch Forming
Stretch forming is a forming process used for plastics and sheet metal by stretching the material into the desired shape.
13. Powder Metallurgy
Powder metallurgy is a process used to make powder metal parts. The powdered metal is mixed with a binder, then pressed and sintered into the part.
14.3D Printing
3D printing is a rapid manufacturing process that converts digital models into physical parts. It builds complex parts by stacking materials layer by layer.
15.Injection Molding
Injection molding, also known as injection molding, is a common plastic processing process used to make a variety of plastic products, from small parts to large parts, covering a wide range of applications. Injection molding machine is the main equipment for performing injection molding process. It includes a heated barrel for heating plastic pellets into a molten state, and an injection head for injecting the molten plastic into the mold.
The machining process is a key manufacturing method used to transform raw materials into required parts and products. These processes include milling, turning, drilling, grinding, reaming, stamping, forging, injection forming, electrical discharge machining, heat treatment, welding, stretch forming, powder metallurgy and 3D printing. The following are some common machining processes:
1. Milling
Milling is a common machining process that involves rotating a tool over a workpiece to remove material to create a flat surface or create complex geometries. Milling can be divided into CNC Milling and Manual Milling.
CNC Milling: In a CNC milling machine, a computer program controls the movement of the cutting tool so that it cuts the workpiece accurately. This method has a high degree of accuracy and repeatability and is suitable for manufacturing complex parts.
Manual Milling: Manual milling typically requires an operator to manually control the milling machine. Although the accuracy is affected by the skill of the operator, it is suitable for some simple tasks. Milling machines mainly process workpieces fixed on the workpiece table through rotating tools. They are suitable for processing flat surfaces, grooves, various curved surfaces or gears.
2. Turning
Turning is a process for rotationally symmetric parts by rotating the workpiece and moving a tool along the workpiece axis to remove material and create the desired shape. Turning can be divided into CNC Turning and Manual Turning.
CNC turning: In a CNC lathe, a computer program controls the movement of the tool so that it makes precise cuts along the workpiece's axis of rotation. This method is ideal for manufacturing axisymmetric parts with high precision and efficiency.
Manual turning: Manual turning requires the operator to manually control the lathe. Although not as fast and accurate as CNC turning, it can still be useful in specific applications. Lathes mainly use turning tools to perform linear or curved translational motion processing on rotating workpieces, and are suitable for processing shafts and rotary parts.
3. Drilling
Drilling is the process of creating a hole or aperture in a workpiece. Usually a drill is used for processing. This process is widely used in the manufacture of a variety of products, including mechanical parts, building structures, and electronic equipment.
4. Grinding
Grinding is a process used to precisely remove material and achieve high-precision surface quality. It is commonly used in high-precision parts manufacturing, such as in the aerospace and automotive industries. Grinding uses a grinding wheel to cut a workpiece, usually rotating at high speeds. The grinder mainly uses a high-speed rotating grinding wheel to grind the plane, outer circle, inner hole, and tool of the workpiece. The surface roughness of the processed workpiece is particularly high.
5. Broaching
Reaming is a process used to create internal or external gears, cutting grooves and other complex contours. This is commonly used when manufacturing gears, turbine blades and other parts.
6. Stamping
Stamping is a process in which metal sheet or strip is cut, formed or punched by a punch on a punch machine. This method is commonly used to manufacture parts, casings, and metal products.
7. Forging
Forging is a process that changes the shape of metal by applying high temperatures and pressures to it. This is typically used to make parts with high strength and high wear resistance, such as engine parts and tools.
8. Injection Molding
Injection molding is a process used to produce high-volume plastic parts. It involves injecting heated plastic into a mold, allowing it to cool and harden into the desired shape.
9. Electrical Discharge Machining (EDM)
EDM is a process that removes material by inducing electrical sparks between the workpiece and an electrode. It is suitable for manufacturing complex parts and work with high hardness materials.
10. Heat Treatment
Heat treatment is a process that changes the properties of a material by controlling its temperature and cooling rate. It improves the material's hardness, strength and wear resistance.
11. Welding
Welding is the process of joining two or more parts into a whole. It is widely used in the manufacture of structures, pipes and various equipment.
12. Stretch Forming
Stretch forming is a forming process used for plastics and sheet metal by stretching the material into the desired shape.
13. Powder Metallurgy
Powder metallurgy is a process used to make powder metal parts. The powdered metal is mixed with a binder, then pressed and sintered into the part.
14.3D Printing
3D printing is a rapid manufacturing process that converts digital models into physical parts. It builds complex parts by stacking materials layer by layer.
15.Injection Molding
Injection molding, also known as injection molding, is a common plastic processing process used to make a variety of plastic products, from small parts to large parts, covering a wide range of applications. Injection molding machine is the main equipment for performing injection molding process. It includes a heated barrel for heating plastic pellets into a molten state, and an injection head for injecting the molten plastic into the mold.