Zhejiang Balford Mechatronics Co., ltd focus on difficult stamping & deep drawing. Main product: motor housing and difficult custom deep drawn stampings.

  • Stamping Die

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    Stamping die is special processing equipment for processing materials. Metal or non-metal 41. Finished part&# 40. Or semi-finishedproducts 41. In the cold stamping process, it is called cold stamping die. 40. Commonly known as cold stamping die&#41 Stamping is a pressure treatment method that uses the die installed on the press to exert pressure on the material at room temperature to cause separation or plastic deformation, so as to obtain the required parts.

    PTJ specializes in designing all kinds of progressive dies and composite dies. Its products are widely used in automobiles, household appliances, electronics, motorcycles, architecture, lighting, electric bicycles, furniture and other industries, and can exceed customers’ requirements both in surface and function. Our engineers will participate in the design of parts from the development stage as required by customers, and they will put forward valuable suggestions and focus on how to achieve more economical and stable parts.

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  • What Is Deep-Drawing Stamping

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    Deep drawing is a metal stamping process, which is used to make metal sheets into various hollow axisymmetric parts. This form of metal stamping includes applying a punching force to the metal plate to pull it radially into the die cavity. First, sheet metal is placed on the forming die. The plate is fixed at the end by the pressure applied by the edge retainer. Then use the mechanical stamping tool to apply axial force to the metal plate to deform the workpiece and flow into the mold cavity to produce the desired shape. Almost all manufacturing industries are likely to benefit from the deep drawing manufacturing process. This technology may be most suitable for manufacturing small stamping parts, such as electronic caps, housings, and assembled housings. However, products of various shapes and sizes can be economically manufactured through this process, including items such as aluminum cans, cookware, and kitchen sinks. In mass production, deep drawing is particularly beneficial, because as the number of units increases, unit costs are significantly reduced: once the tools and molds are created, the process can continue with almost no downtime or maintenance costs.

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  • Characteristics of metal stamping parts

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    Metal stamping parts are widely used in life and are one of the most common metal products. Stamping parts have many characteristics. Stamping plants need to understand the characteristics of stamping parts in order to achieve better production. . Zhejiang Balford Precision Stamping – Over the past 20 years, we have been committed to the customized processing of precision stamping parts and accumulated rich experience. Next, Balford precision stamping will introduce the main features of stamping parts.

    1. The materials for the production and processing of metal stamping parts mainly include cold rolled, hot rolled, stainless steel plate, copper and other metal strips.
    2. The advantage of stamping parts is that they are made by stamping on the premise of low material consumption. . Stamping parts are light in weight and have good toughness. After plastic deformation of raw materials, the structure of metal components is improved, gradually increasing the compressive strength of the stamping parts produced.
    3. In the whole production process of stamping parts, since the surface of the material will not be damaged, it has good surface quality, and the appearance is smooth and beautiful, which provides convenience for surface treatment such as surface spraying, electroplating process, air oxidation, etc.
    4. Stamping parts have high specification accuracy. Stamping parts produced by the same die have uniform size and good interchangeability. General installation and application requirements can be met without further processing

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  • Continuous die stamping

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    Continuous die stamping is characterized by high batch production efficiency, easy automation, safe operation, long die life, reduction of equipment, die number and workshop area. . Now stamping parts manufacturers generally change from single punch to continuous die stamping. Today, we will give a brief introduction. Continuous die, also known as progressive die, refers to the punching die that can complete multiple processes at several different positions simultaneously in one stroke of the press. . That is, the processes of trimming, cutting, grooving, punching, plastic deformation and blanking can be completed in a pair of moulds. According to the actual needs of stamping parts, the manufacturer of stamping parts shall arrange multiple stamping processes in a certain order for continuous stamping. This also provides favorable conditions for high-speed automatic stamping.

    The output and batch size of the processed parts must be large enough, otherwise it is not conducive to cost control. . The mechanical properties of stamping materials need to be relatively stable, and there are also high requirements for width and thickness tolerances and straightness of material edges. The press used shall have sufficient strength, stiffness, power, accuracy, large working surface and reliable braking system.

    The main focus/point of the continuous die stamping process is strip steel, as strip steel is the core/core of the entire continuous die stamping process. Bar chart design involves the designer’s design ideas. It is necessary to know how many parts the strip steel consists of, such as material points, cutting positions, bending process, etc.

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  • Metal Spring Clip

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    Metal spring clips are usually made of stainless steel or manganese alloy after heat treatment and are important parts of electronic switches. The spring clamp plays an important role in the high-quality switch between the operator and the product. At the same time, stable toughness and long life performance will provide good tactile feedback for the operator.

    Material Science

    Generally, copper, carbon steel, stainless steel, manganese and other materials are used to manufacture metal spring clips. Factors such as heat resistance, quenching, corrosion resistance, fatigue strength and elastic limit should be considered comprehensively.


    Metal spring clip is mainly used to control the movement of machinery, store and output energy, absorb vibration and impact energy, and is also a force measuring element.


    Metal spring clips have been widely used in various fields, especially in the mechanical and electrical industry, mainly in electronics, electrical appliances, advertising, IT, communications, automobiles, buildings, furniture, bags, craft gifts, sports equipment, clothing, outdoor, etc.

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  • Introduction to multiple drawing

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    As we all know, when drawing, stamping and drawing products sometimes need to go through multiple drawing processes. Of course, it is better to stretch them once as much as possible. . These tensile forming processes can be divided into several types: tensile processing,’re tensile processing, thinning tensile processing, reverse tensile processing. Please refer to the introduction of these multi-drawing processes by stamping and drawing manufacturers below. 1. Tightening treatment: use the plate pressing device and the punching force of the punch to pull some or all of the flat materials into the cavity of the female die, so that it can form a bottomed container. The side wall of the container is parallel to the stretching direction, which is a simple stretching process. Some need to be expanded to form.

    1. Redrawing: that is, for products that cannot be finished by deep drawing, semi-formed products after deep drawing need to be stretched again to increase the depth of the formed container.
    2. Reverse stretching process: reverse stretching the parts stretched in the previous process, the inner side of the workpiece becomes the outer side, and the outer diameter decreases.
    3. Thinning and stretching process: extrude the formed container into the cavity of the die slightly smaller than the outer diameter of the container with a punch, so that the outer diameter of the container with a bottom becomes smaller and the wall thickness becomes thinner, eliminating the deviation of the wall thickness, and making the surface of the container smooth
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  • What Is a Stamping Die?

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    Stamping is a cold forming operation, which means that no heat is intentionally introduced into the die or sheet. However, due to the heat generated by friction during cutting and forming, stamping parts are usually very hot when leaving the mold.

    Mold sizes range from mould (palm size) used to make microelectronic products to mould 20 square feet and 10 feet thick used to make the entire car body sides.

    Parts produced by the stamping process are called parts. Some molds can produce more than one part in a cycle, and the cycle speed can reach 1500 cycles. 40. Stroke&# 41. Every minute. Pressure causes death.

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  • Metal Stamping Cost Reduction

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    The rational production of metal stamping parts is to reduce development costs, improve material utilization, reduce material consumption and save processing time. The rationalization of the stamping process is an effective way to reduce production costs.
    A. In the stamping process, keeping the machine running continuously can improve the production speed.
    B. Press stability can ensure stable performance in the process.
    C.C. Raise awareness of safe operation. Replace manual operation with tools in the production process.
    D. Improve die performance and reduce material loss rate.
    E. Strictly control the quality of materials according to customer drawings.
    F. Operate in strict compliance with SOP/SIP standards to reduce scrap rates.Zhejiang Balford Precision Stamping has always been at the forefront of manufacturing high-quality precision, turning and sheet metal stamping metal parts from brass, copper, aluminum, SUS. We also deal with various auxiliary metal components in switchgear, fuse gears, miniature circuit breakers, pumps, telecommunications, electrical and automotive.

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  • By : Categories : Blog,Industry Comment: Comments Off on

    Chip jumping of metal stamping die refers to the phenomenon that the sheet metal jumps to the die surface at the edge after blanking in the high-speed production die. As one of the common undesirable phenomena of metal stamping parts, chip jumping is caused for many reasons. Some are caused by improper mold design, some are caused by poor materials and stamping operators. Next, we will analyze the specific causes of chip jumping of the metal mold.
    The first reason is that the punch or other parts of the stamping die metal have abnormal scratches or damage, resulting in small scrap materials. This is mainly because the punch has no corresponding structure when it needs to exert excessive effect on the material.
    The second reason is that the blade gap of the metal stamping die is too large and the design of the blade gap is unreasonable. Reasonable clearance accounts for 4-6% of the material thickness. In the normal operation of metal stamping die, due to the frequent reciprocating friction between the sheet metal and the blade, the internal wear of the blade causes excessive clearance of the blade.
    The third reason is that the raw materials have been surface treated before stamping, and there is unstructured fusion between the surface treatment layer and the surface treatment layer. The material will cause separation and blanking at the edge of the material.
    Another reason is that the metal stamping die of the punch has magnetism, which generates suction on the plate and causes the chip to jump.

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  • Stamping Die Components

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    Stamping die is usually composed of fixed die and movable die. The fastener is fixed to the press table with a clamping plate and screw, which is called the lower die. The movable part is fixed to the sliding block of the punch, i.e. the upper die. Then the upper die moves up and down with the sliding block for stamping.
    Different components can be divided into 5 categories according to their functions:
    1. Working parts: Working die parts are used for stamping, which can directly deform and separate sheet metal parts to obtain stamping parts. Such as punch blade, die blade, punch matrix, etc.
    2. Test piece: The function of the pilot element is to control the feed direction and feed pitch of raw materials, and to ensure the correct position of the raw material plate of the die. Such as pins, positioning pins, guide pins, pin pins, pin plates, side clamping plates, etc.
    3. Pressing, stripping and lifting parts: These stamping die parts are designed to ensure that stamping parts and waste materials can be discharged from the die after each stamping, so that the next production can proceed smoothly. For example: stripper, revamp, waste blade, etc.
    4. Guide Components: These stamping die components are used to ensure the correct direction of the upper and lower dies in the relative movement process, so that the punch and female die inserts have a uniform gap, thus improving the quality of stamping parts.
    5. Installation of fastening components: The function of these progressive die components is to connect the above four types of stamping die components together to ensure that the relative position of each die component is correct and that the die can be installed on the punch. .
    Of course, this is not to say that each stamping die should have more than 5 die components. Once the stamping die is used for prototype or small batch production, to shorten the validation time and save cost, sometimes it could simplify the stamping die structure, which only has working components, stripping components and several fastened components. But for high volume mass production tools, except for the above 5 types of die components, there will be additional automatic feeding and ejection devices added to the stamping die, which can ensure the quality of the stamping part and increase the production efficiency rate and tool life time.

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  • Types of Deep Drawing Processing

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    Generally speaking, a metal stamping manufacturer will divide the deep drawing process into four parts: deep drawing,’re drawing, reverse drawing and thinning&deep drawing.

    Drawing process: use the punching force of the flat plate device and the punch to pull part or all of the flat plate into the cavity of the female die to form a bottomed container.

    Re-drawing: In order to increase the depth of the forming container, it is necessary to re-draw the finished products after drawing.

    Reverse drawing process: reverse drawing the workpiece drawn in the previous process, then the inner part of the workpiece becomes the outer part, and the outer diameter becomes smaller.

    Thinning and deep drawing: extrude the formed container into a concave cavity slightly smaller than the outer diameter of the container with a punch, so that the outer diameter of the container and the bottom becomes smaller.

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  • How Can Metal Stamping Use in The Medical

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    With the rapid development of the medical technology sector, medical equipment is crucial to the modern medical care industry. Manufacturers are facing the challenge of rising medical costs because prices are rising almost as fast as technology adaptation. To solve this problem, many professionals have begun to see metal stamping as a fast, consistent and more cost-effective solution.
    In this case, high-precision metal stamping technology has become the preferred alternative for machining in medical applications. Today, metal stamping manufacturers can provide many micro and small metal parts, which are needed by the medical industry. Precision metal stamping has been widely used on many medical devices. It has become an important trend for the rapid development of the stamping industry in the future.

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  • Top 6 Benefits of Metal Stamping

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    For decades, with the continuous development of technology, more and more industries have been closely related to metal stamping. Manufacturers are no longer limited to traditional machining technology, but choose this fast, efficient and stable metal stamping technology for production. For example, it is widely used in automotive, industrial, construction, medical, fire and other industries.
    Metal stamping is a manufacturing process that uses one or a series of metal stamping dies to form a sheet metal into a three-dimensional workpiece.
    This process greatly improves the precision and quality of the metal. This process is fully automated, which means that manufacturers can operate quickly without incurring additional labor costs, thus greatly saving labor costs.
    In addition, for projects with a large number of complex parts, metal stamping is the best choice. In this article, we will discuss the advantages of medical metal stamping in more detail, highlighting six key points.

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  • Differences between deep drawing and metal stamping

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    With the development of metal processing technology, it is very important to choose the right process to manufacture metal parts. Deep drawing and metal stamping are two different processes, which can produce metal parts according to the needs of the products. Deep drawing metal stamping is a sheet forming process that produces high dimensional accuracy and a smooth surface finish. Metal stamping is to strike the metal plate with a mold to form the desired shape.

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  • Custom Metal Stamping Parts for MedicalIndustries

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    Zhejiang Balford Precision Stamping Co., Ltd. is a leading supplier of precision electronic stamping parts solutions in China. We specialize in micro precision metal stamping for various industries. From prototype to mold manufacturing to mass production, you will get the best solution. Especially in the manufacture of difficult and high-precision electronic stamping parts, we have rich experience and engineer R&D team, and have been recognized as the best supplier of electronic precision parts in China. With more than 20 years of industry experience, we have the knowledge and skills to produce high-quality stamping parts for customers in all walks of life, including medical metal stamping parts.

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