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2021
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Hard alloy punching needle for precision die
As the old saying goes: if a worker wants to do a good job, he must first sharper his tools. This sentence is particularly applicable in the field of mechanical processing. The application of hole processing is almost in all industries, because it is necessary to connect parts or achieve other purposes such as heat dissipation.
As the old saying goes: if a worker wants to do a good job, he must first sharper his tools. This sentence is particularly applicable in the field of mechanical processing. The application of hole processing is almost in all industries, because it is necessary to connect parts or achieve other purposes such as heat dissipation. For example, many electrical appliances such as heat dissipation holes on a computer chassis, mobile phones, and even many molds and machines need to process one or more holes to achieve requirements such as connection of components. However, processing one hole at a time, and processing hundreds of holes at the same time (in less than 1s), the production efficiency is obviously two-sided. In order to improve efficiency, reduce costs, and save energy, this requires the use of punching machines, and the processing of these holes is indispensable to such a root of the needle-carbide punch.
What is carbide punch?
Carbide punch refers to the use of high-quality carbide materials by precision grinding, polishing and other processes made of hole processing accessories.
Carbide pin in different places have different names, such as, hard alloy needle, hard alloy thimble, hard alloy pin, hard alloy pin, hard alloy pin pin, and so on. It is used to punch holes of various types and shapes. Punching needle is an essential part for stamping (precision) mold hole processing, which belongs to replaceable mold consumables. The tolerance of the punching needle is required to be accurate to 0.002, and the finish is required to reach a 0.2 mirror surface.
cemented carbide punching needle
What are the types of carbide punch?
For example, the guide punch (guide punch/guide punch), according to the needs of the stamping machine, can have a variety of shapes, there are A type, B type, HB type, TAPP type, TBPP type, and so on. For example, the sub-punch (sub-punch/sub-punch) has a small protrusion at the top of the punch, including standard, A, JSBP and other models. There are also forming punching needles, double-headed punching needles, tooth pumping punching needles, hexagonal punching needles, elliptical punching needles, fan-shaped punching needles, special-shaped punching needles......
Why choose carbide punch?
The material of the punch is not limited to cemented carbide, as well as high-speed steel, and so on. According to the literature, the advantages of cemented carbide material itself, such as high hardness, wear resistance, heat resistance, corrosion resistance, high bending strength, low thermal expansion coefficient, high precision, long life, etc., make it stand out from many materials. Become the most suitable material for punching needles.
In addition, the choice of carbide material also depends on the material and thickness of the workpiece to be stamped. Normally,
1. The thicker the thickness of the workpiece to be stamped, the lower the hardness and the better the toughness of the carbide model.
2. The material of the workpiece to be stamped is hard. Relatively speaking, the hard alloy model with slightly lower hardness should also be selected, which can effectively avoid the punching needle being punched.
3. The workpiece to be stamped is relatively thin (such as plate), or the hardness is not high, and the carbide model with higher hardness can be used, so that the service life of the punch can be improved.
Production Process of Carbide Punch Needle
Ingredients (select tungsten carbide powder cobalt powder according to applicable requirements) → fully mixing → crushing → drying → adding forming agent after sieving → re-drying → sieving to prepare mixture → granulating and pressing the mixture → forming → low pressure sintering (vacuum low pressure sintering furnace) → blank after sintering → inspection (non-destructive ultrasonic flaw detection) → blank size accuracy inspection → cutting and forming (or electric spark processing) → rough grinding → fine grinding → polishing → inspection → Packaging → Storage
Carbide punching needles are directly related to the design of (precision) molds and the precision and quality of mold accessories. It is important that the quality of the punch will directly affect the quality of the stamping parts, production efficiency and production costs. Therefore, the choice of punching needle material is particularly important. In addition, there are many factors that affect the service life of the punch, such as the stamping speed, the verticality of the machine......
Latest information
On May 20, 2023, Xinyu launched an outdoor expansion activity with the theme of "Cohesion to Win the Future" in Anji Zhuhai. Through the development of the activity, the cohesion and overall centripetal force of the employee group were enhanced, and the positive communication between employees was established., Mutual trust, unity and cooperation, cultivate team awareness, and increase the sense of responsibility of employees. One by one well-designed team building games aroused everyone's strong interest and enthusiasm. In the process of cross-game experience, the team members won one by one with the cooperation. This activity not only enhanced the cohesion between Xinyu employees, but also cultivated a tacit understanding between each other.
2023/9/21, the launching ceremony of the digital supply chain platform of Wujiang Xinyu Precision Mould Co., Ltd. was solemnly held in Suzhou Taihu International Conference Center. Gan Xiangquan, general manager of the company, spoke on behalf of Xinyu Company. Since then, the company has officially taken a big step towards a new model, a new journey and a new future!
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