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Processing technology of coupling

A coupling is a device used to connect two shafts, which can transmit torque and rotational force. The processing technology of couplings mainly includes the following methods:

Casting: Casting is the process of injecting molten metal or alloy into a mold, cooling it to form the desired shape. The casting of couplings generally adopts sand casting or long-term mold casting.

Forging: Forging is the process of heating metal to a certain temperature and applying force to transform it into the desired shape. The forging of couplings generally adopts free forging or die forging.

Mechanical processing: Mechanical processing is the process of machining metal using machine tools. The mechanical processing of couplings mainly includes methods such as turning, milling, drilling, and grinding.

Hot forging is an efficient processing method that heats metal materials to a certain temperature for plastic deformation and compression forming. During the hot forging process, the material will become easy to plastically deform due to the high temperature, and the cooling speed is slow, so the uniformity of the material can be guaranteed, and cracks and defects are not easy to occur during the deformation process, and finally high-density, high-strength, and high-wear-resistant metal parts can be obtained.

The hot forging process has the following advantages:

It can produce metal parts with high precision and smooth surface.

Due to the slow cooling speed, the stress of the metal material is reduced during the deformation process, and it is not easy to deform and crack.

The hot forging process has high processing efficiency and can greatly shorten the production cycle.

The process has strong adaptability and is suitable for metal parts of various shapes and materials.

Fastener processes involve the manufacturing, assembly, and use of fasteners such as screws, bolts, nuts, washers, and rivets. These processes are critical in a wide range of industries, including automotive, aerospace, construction, and electronics. Here's an introduction to the key aspects of fastener processes:

1. Definition of Fasteners

Fasteners are mechanical devices used to join two or more components together securely. They are typically removable, allowing for disassembly and maintenance.

2. Types of Fasteners

Bolts and Nuts: Threaded fasteners used with a nut to clamp parts together.

Screws: Threaded fasteners that create their own mating thread in the material.

Washers: Thin plates used to distribute load or prevent loosening.

Rivets: Permanent fasteners used in applications where disassembly is not required.

Pins and Clips: Used for alignment or locking components in position.

3. Fastener Materials

Fasteners are manufactured from various materials depending on the application, such as:

Carbon Steel: Common for general-purpose fasteners.

Stainless Steel: Resistant to corrosion, ideal for outdoor and marine applications.

Alloys (e.g., Titanium, Inconel): Used in aerospace and high-performance applications.

Plastics or Composites: For lightweight or non-metallic applications.

4. Fastener Manufacturing Process

Wire Drawing: Raw material is drawn through dies to achieve the desired diameter.

Cold Heading/Forming: Shapes the fastener head and body by pressing material in a die.

Thread Rolling: Forms threads by rolling the fastener between dies.

Heat Treatment: Enhances strength and durability.

Coating and Plating: Improves corrosion resistance or appearance (e.g., zinc plating, anodizing).

A knob is a manual component that can be manually controlled to rotate, and can be divided into continuous multiple rotations and positioning rotations according to functional requirements. Its working principle is based on the rotation action to control the on/off of the circuit or adjust the parameters of the equipment. Knobs are commonly used in power supply, motor control, and other applications to change the state or parameter settings of a circuit by rotating them.

There are various shapes and types of knobs, including circular knobs, polygonal knobs, pointer knobs, and manual turntables. Circular knobs are the most common type, suitable for simple switch control; Multilateral knobs are typically used for more complex adjustment functions; Pointer knobs are often used for precise adjustment; The manual turntable is suitable for situations that require wide range adjustment. These different types of knobs have a wide range of applications in industry and daily life, meeting the control needs of different devices.

Cold heading of screws is the process of using a mold to compress and deform the wire with external force, making the wire into the required length and extruding the nut. Cold heading is widely recognized as the most suitable additive process for producing standard fasteners such as bolts, screws, nuts, rivets, and dowels.

Because the advantages of cold heading are quite prominent. It is an advanced production process with high precision, high efficiency, high quality and low consumption, which can save raw materials, improve production efficiency, reduce costs, and is suitable for mass production. Cold heading is a screw that uses the plastic deformation of metal to transform wire into the desired shape, greatly reducing the loss of raw materials caused by cutting, improving material utilization, and reducing waste. With the cooperation of molds, cold heading can process fasteners with various complex shapes and difficult cutting processes. Moreover, molds can be reused for mass production, improving production efficiency and making them suitable for large-scale production needs.

The screws formed by cold heading have no burrs and are relatively smooth. After processing, the screws basically do not need to be cut or heat-treated.

Moreover, the hardness and strength of the screws after cold heading are higher than those of the raw materials, and they can also improve fatigue strength. For example, some fasteners that originally needed to be made of high-strength materials can be replaced with slightly lower strength materials if cold heading is used to produce fasteners that meet strength requirements, which greatly saves

Sheet metal processing is a manufacturing process widely used in various industrial fields, which involves processing raw materials such as metal sheets, plates, and strips into metal products with specific shapes, sizes, and performance requirements through a series of process operations. Sheet metal processing involves numerous process steps, each with its unique characteristics and application scope.

1、 Cutting process

Shear is one of the most basic processes in sheet metal processing, mainly used to cut raw materials into the desired shape and size. The cutting process includes various methods such as mechanical cutting, laser cutting, plasma cutting, and water jet cutting. Mechanical cutting is suitable for thicker plates, while laser cutting and plasma cutting are suitable for thinner materials, enabling high-precision and high-efficiency cutting.

2、 Stamping process

Stamping is one of the commonly used processes in sheet metal processing, which uses punch presses and molds to press raw materials to obtain the desired shape and size. Stamping technology has the advantages of high production efficiency, low cost, and high material utilization, and is widely used in sheet metal processing in industries such as automobiles, electronics, and home appliances.

3、 Bending process

Bending is the process of bending sheet metal materials at a predetermined angle and shape. The bending process can be achieved through various methods such as mechanical bending, hydraulic bending, and pneumatic bending. Bending technology plays an important role in sheet metal processing, as many products require bending to obtain the desired shape and structure.

4、 Welding process

Welding is the process of melting the contact parts of two or more metal components, and then cooling and solidifying them into a whole. In sheet metal processing, welding technology is commonly used to connect multiple sheet metal parts together to form a complete product. Welding processes include various methods such as arc welding, gas welding, laser welding, etc. The choice of welding method depends on factors such as material properties, welding requirements, and processing conditions.

Aluminum profiles are a common metal material with advantages such as lightweight, corrosion resistance, and easy processing, and are therefore widely used in fields such as construction, machinery, electronics, aerospace, and more. In order to meet the needs of different fields, there are also various processing methods for aluminum profiles.

1、 Cutting and processing

Cutting is one of the most basic operations in aluminum profile processing. Common cutting methods include mechanical cutting, laser cutting, water cutting, etc. Mechanical cutting is suitable for thicker aluminum profiles and is carried out using equipment such as sawing machines or cutting machines. Laser cutting is suitable for thin aluminum materials and has the characteristics of high precision and high efficiency. Water cutting uses high-pressure water flow to cut aluminum materials, with a smooth cutting surface and no heat affected zone.

2、 Bending processing

The bending process of aluminum profiles is achieved by applying a certain external force to cause plastic deformation of the aluminum material, resulting in the desired shape and angle. Common bending methods include cold bending and hot bending. Cold bending is the process of bending aluminum at room temperature and is suitable for thinner aluminum materials. And hot bending is the process of heating aluminum to a certain temperature before bending, which is suitable for thicker aluminum materials. Aluminum profiles processed by bending have a beautiful and elegant appearance, and are commonly used in fields such as building doors, windows, and decoration.

3、 Drilling processing

Drilling is one of the common operations in aluminum profile processing, mainly used to make connection holes, installation holes, etc. The common drilling methods include drilling machine drilling, milling machine drilling, etc. During the drilling process, attention should be paid to the accuracy of parameters such as aperture, depth, and spacing to ensure that the processed aluminum profiles meet the requirements for use.

4、 Tapping processing

Tapping is a machining method for producing internal threads on aluminum materials. Tapping processing requires the use of specialized tapping machines to machine threads inside aluminum materials through cutting. Tapping processing is commonly used to make connectors, fasteners, etc., with the characteristics of firm connection and easy disassembly.

Hot forging is a processing method that utilizes the plasticity of materials at high temperatures to plastic deform metal materials into the desired shape and size through external forces. The basic principle can be summarized as the following steps:

Material preheating: Heat the material to be forged in the furnace to the appropriate working temperature. The purpose of this step is to improve the plasticity of the material and reduce its resistance, so that plastic deformation can be more easily carried out in the subsequent forging process.

Forging die design: Design a suitable forging die based on the required shape and size of the parts. A forging die usually consists of two parts: an upper die and a lower die. The upper die is fixed on the slider of the forging press, while the lower die is fixed on the worktable. By controlling the up and down movement of the slider, the material is placed between the upper and lower molds for processing.

Material clamping: Before forging, the material to be forged needs to be clamped between the upper and lower molds. Usually, clamping tools such as fixtures or chucks are used to ensure the stability and safety of materials. Ensure that the clamping is secure to prevent displacement or material detachment during the forging process.

Forging operation: After the clamping is completed, the forging operation begins. By controlling the movement of the forging press and applying external force, the upper and lower molds exert pressure on the material. Under the combined action of high temperature and pressure, materials undergo plastic deformation and gradually reach the desired shape and size.

Cooling treatment: After forging is completed, appropriate cooling treatment should be carried out on the forgings. The cooling process helps to stabilize the structure and performance of forgings and prevent the generation of residual stresses. Common cooling methods include natural cooling, water quenching, or air cooling.

The basic concept of cold heading

Cold heading (extrusion) is an important component of precision plastic volume forming technology. Cold extrusion refers to placing a metal blank into a mold cavity in a cold state, and under strong pressure and a certain speed, forcing the metal material to undergo plastic flow, thereby obtaining the desired shape, size, and mechanical properties of the extruded part.

Obviously, cold extrusion processing relies on molds to control the flow of metal and the massive transfer of metal volume to form parts.

In fact, the forming of any fastener is not only achievable through cold heading as a deformation method. During the cold heading process, in addition to upsetting deformation, there are also various deformation methods such as forward and reverse extrusion, composite extrusion, punching and rolling.

Therefore, the term for cold heading in production is only a habitual term, more precisely, it should be called cold heading (extrusion).

The basic concept of cold heading

Obviously, cold extrusion processing relies on molds to control the flow of metal and the massive transfer of metal volume to form parts.

Therefore, the term for cold heading in production is only a habitual term, more precisely, it should be called cold heading (extrusion).

Classification of Couplings

Couplings can be classified into the following categories based on their structure and function:

Rigid coupling: This type of coupling does not produce relative displacement when transmitting torque. Common types include sleeve couplings, flange couplings, and clamp shell couplings. They are suitable for situations where the axis is completely aligned, but high alignment requirements are required, otherwise it may cause malfunctions.

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Semi rigid coupling: This type of coupling allows for a certain relative displacement without causing torque loss, such as serpentine couplings and movable spring couplings. They are suitable for situations that require some flexibility but do not have high requirements for alignment.

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Flexible coupling: This type of coupling transmits torque through elastic elements (such as rubber, springs, etc.) and has the functions of buffering, damping, and compensating displacement. Common types include plum blossom shaped elastic couplings and snake shaped spring couplings. They are widely used in equipment that requires frequent starting and stopping, as well as high-speed transmission systems.

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Gear coupling: Utilizing the meshing of gears to transmit torque and rotational motion, it has the characteristics of high transmission efficiency and good stability, and is suitable for situations where large torque is transmitted, such as machine tools and generator sets.

Metal knobs are mechanical components widely used in fields such as machinery, electronics, and automobiles, with different shapes and specifications. Metal knob processing includes various processes such as casting, forging, machining, cold and hot forming, etc. Among them, machining is the most commonly used processing method.

The machining process of metal knobs includes turning, milling, drilling, grinding, stretching, stamping, etc. Below, we will focus on two machining methods: turning and milling.

Turning machining

Turning is a method of placing a rotating workpiece on a lathe and using cutting tools to machine the surface of the workpiece into the desired shape along the axial direction. The turning process generally involves determining the diameter and length of the workpiece, clamping the workpiece onto the workpiece support, and cutting the surface of the workpiece on the central axis of the machine tool with a turning tool to form the desired geometric shape.

Milling processing

Milling is a method of placing a rotating tool onto a milling machine for processing. The milling process generally involves determining the diameter, length, thickness, and material of the workpiece, determining the milling route before machining, determining the manufacturing and maintenance of the machining tool, and adjusting parameters such as milling machine pressure and speed.

Customize sheet metal to meet your individual needs

What is sheet metal processing:

Sheet metal processing is called sheet metal processing. Specifically, for example, the use of plates to make chimneys, iron barrels, oil tanks, ventilation pipes, elbow sizes, day garden places, funnel shapes, etc., the main process is cutting, bending, bending, welding, riveting, etc., which requires a certain knowledge of geometry.

Sheet metal processing in a variety of ways:

Sheet metal is sheet metal hardware, that is, parts that can be processed by stamping, bending, stretching and other means, the general definition is that the thickness of the parts does not change during the processing. The corresponding casting parts, forging parts, machining parts, etc., such as the iron shell outside the car is sheet metal parts, and some cabinets made of stainless steel are sheet metal parts.

Advantages of sheet metal processing:

1. Fast processing speed

The most significant advantage of sheet metal processing technology is that the cutting speed is fast and is not limited by the number of processing.

2. The effect is significant

Laser cutting in sheet metal processing is non-contact cutting, and the effect of edge heating is very small, which can prevent the adverse effects of thermal expansion of the work piece.

3. Not limited by material characteristics

Sheet metal processing can quickly process aluminum alloy plates and cemented carbide, no matter how high the hardness, you can directly cut without deformation.

Shenzhen Jingbang has decades of processing experience in the hardware industry, and has superb technology for sheet metal processing. In the field of metal sheet metal processing has its own characteristics and technology. Choose sheet metal finishing parts where we can harvest high quality.

High precision CNC custom screws

What are CNC custom screws?

CNC (Computer numerical Control) technology transforms complex design drawings into high-precision actual products through highly automated processing equipment. CNC custom screws are precisely machined to meet standards or special requirements by CNC machine tools according to customer needs. Whether it is size, shape, material or thread type, it can be customized according to the specific application to ensure that the screw perfectly fits the product design requirements.

Advantages of CNC custom screws：

-High accuracy

CNC machining has extremely high accuracy and repeatability, which can ensure that the size and shape of each custom screw are strictly in line with the design requirements, avoiding the errors that may exist in traditional manual manufacturing, and improving the reliability of the product.

-Diversified selection

For different application scenarios, CNC custom screws can provide a variety of material options, including stainless steel, titanium alloy, copper alloy, etc., to meet the corrosion resistance, high temperature resistance, At the same time, the type, length, diameter of the thread can be customized according to customer needs.

-Flexible mass production

Whether for individual customization or mass production, CNC machining offers flexible solutions. In small batch production, CNC machining also has lower production costs, which can avoid excessive inventory overhang while ensuring product consistency.

-Improve product quality and safety

Precision CNC machining can ensure the quality of screws, reduce the safety risks caused by inappropriate or loose screws, especially in the automotive, aviation, medical and other high-demand areas, the importance of CNC custom screws has become more prominent.

Field of application

Electronic product

Modern electronic products are increasingly miniaturized and high-precision. CNC custom screws can meet the needs of various precision equipment and parts, ensuring the stable connection and fixation of electronic components.

aerospace

In the aerospace field, the precision and strength of screws are crucial, and any small deviation can cause serious consequences. CNC custom screws can be precisely manufactured to meet demanding technical requirements.

Iron cutting: It is a method of cutting workpieces using rotating multi blade cutting tools on a milling machine. When milling, the rotation of the milling cutter is the main motion, and the linear or rotational motion of the milling cutter or workpiece along the coordinate direction is the feed motion. Suitable for machining flat and grooved workpieces.

Characteristics of milling processing

(1) Intermittent cutting, high impact and vibration;

(2) Multi blade cutting with high productivity;

(3) Semi closed cutting requires space for chip storage and removal;

(4) The cutting load varies periodically;

(5) Different milling methods and cutting tools can be used for the same machined surface.

Turning machining, as a common metal cutting process, is widely used in the field of mechanical manufacturing. It is mainly used for processing metal components with rotational symmetry, such as shafts, gears, threads, etc. The machining process of turning is complex, but through reasonable design and operation, it is possible to achieve refined production of metal parts. This article will provide you with a detailed analysis of the turning process flow.

Characteristics of turning machining

High precision: Turning machining can achieve high-precision dimensional requirements by precisely controlling cutting parameters.

High efficiency: The cutting speed of the lathe is relatively high, which can greatly improve machining efficiency.

Automation: With the development of technology, turning machining can achieve automated production, improve production efficiency and product quality.

Wide application: Turning machining is suitable for processing parts of various materials, such as steel, cast iron, non-ferrous metals, etc.

Drilling and punching are the most common processing methods for sheet metal materials during the manufacturing process.

Drilling: Drilling is the process of using a drill bit as the main tool to create a hole in sheet metal material by rotating and pushing the drill bit. When drilling, it is necessary to choose different drill bits according to the size and depth of the hole, and select different speeds and feed rates according to actual needs to ensure the quality of the drilling.

Punching: Punching is the process of punching holes in sheet metal materials using punching molds, similar to chiseling holes in wood. Punching is suitable for mass production and is applicable to the thickness and hardness of various materials. The use of punching molds requires selection based on factors such as material thickness, shape, and mold life, as well as mastery of skills such as punching machine debugging and processing parameter settings.

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