Die punch is easy to break, iron filings, poor sprouting and molding
The punch is easy to break
a. The closing height is too low, and the cutting edge of the punch is too long. Adjust the closing height b. Improper material positioning causes the punching punch to cut one side, and the positioning adjustment or feeding device is broken due to uneven stress c. The cutting edge is blocked by the waste of the lower die, causing the punch to break, and the blanking hole is drilled again to make the blanking smooth d. Fix the fixed part (clamp plate) and the guide part of the punch or re thread the cutting block to make the punch move smoothly up and down (punching plate) e. The punching plate is poorly guided, which causes the punch to be forced on one side and the punching plate clearance is repaired f. The punch knife edge is too short, which interferes with the punching plate. Replace the punch, and increase the length of the knife edge g. The punch is not fixed well, and it moves up and down. Fix the punch again to prevent it from moving up and down h. The punch edge is not sharp, regrind the edge
The punch surface is strained, and the punch is replaced when the force is uneven during stripping
j. Punch is too thin, too long, and the strength is not enough. Change the punch type again k. The hardness of the punch is too high. The punch material is not correct. Replace the punch material and adjust the heat treatment hardness
Iron filings
a. Rebar dislocation Recalculate the rebar position or bending position b. If the bending clearance is too small, extrude iron filings to readjust the clearance, or grind the molding block, or grind the molding punch c. The bending punch is too sharp to trim the R angle d. There is too little material to connect the knife edge e. The pressing rib is too narrow, regrind the pressing rib
Poor sprouting
a. The center of the bud bottom hole does not coincide with the center of the bud punch to determine the correct center position, or move the position of the bud punch, or move it to the position of the bud - high side - low side, or even break the dynamic pre punching hole, or adjust the positioning b. Uneven clearance of concave die, resulting in low or even broken budding edge high edge repair budding clearance c. The sprouting bottom hole does not meet the requirements, resulting in sprouting height and recalculation of the bottom hole diameter, increase or decrease the diameter deviation of the pre punched hole, or even crack
Poor molding
a. The punch of the forming die is too sharp, which causes the material to crack. The forming punch shall be trimmed with an R angle, and the knife edge shall be properly trimmed with an R angle b. The length of the forming punch is not enough, resulting in the failure to calculate the correct length of the punch. Adjust the actual length of the punch to meet the forming requirements c. The forming punch is too long, and the material at the forming part is deformed. The correct length of the punch is determined. Adjust the actual length of the punch to meet the requirements until the punch breaks d. The material at the forming part is not enough to cause tension crack. Calculate the material to expand, or trim the R angle, or reduce the forming height e. Poor positioning, resulting in poor molding Adjust the positioning or feeding device f. The forming gap is too small, causing tension crack or deformation, and the gap is adjusted
Stamping parts on automobile body are generally divided into covering parts, beam frame parts and general stamping parts. The stamping part that can clearly represent the image characteristics of the automobile is the automobile panel. Therefore, the automobile die referred to by GATT can be said to be "automobile panel stamping die". It is called … Processing technology and characteristics…
Classification of automobile tire molds: Processing technology of automobile tire mould (taking mould as an example): Mold Classification and Processing Technology of Vulcanized Automobile Tire Vulcanized automobile tires are essential components of modern vehicles. They are made using a complex manufacturing process that involves several stages, including mold classification and processing technology. In this article, … Mold classification and processing…
What conditions should the cooling water design of plastic mold meet? 1、 The edge distance between water conveyance and product material level shall not be less than 10MM generally, and shall be designed between 10MM and 12MM as far as possible; Alloy die is generally 25MM; 2、 The design of water transport margin and insert … What conditions should the…
It is very important to develop mold standard parts and implement specialized production of molds In recent years, the plastic mold industry has developed rapidly in China, which is followed by increasingly fierce market competition. After joining the WTO, foreign mold manufacturers enter the domestic market. To stand out in the fierce competition, it is … develop mold standard parts…
Plastic mold manufacturers focus on developing molds with high technology content In recent years, although the growth rate of mould export is greater than that of import, the absolute amount of increase is still that of import is greater than that of export, which leads to the increase of mould foreign trade deficit year by … Plastic mold manufacturers focus…
The four elements of mould include quality, delivery period, price and service In the four elements of mould quality, delivery cycle, price and service, more and more users put the delivery cycle first. It has become a trend to require mold companies to deliver products as soon as possible. Enterprises try their best to improve … The four elements of…
Rely on technical personnel to improve the design and processing level of mold enterprises With the improvement of the design and processing level of mold enterprises, mold manufacturing is mainly relying on technology instead of bench work in the past. This is not only the change of means of production, but also the change of … Rely on technical personnel…
Improper heat treatment process of mould is easy to cause failure of plastic mould The failure of plastic mould is mainly caused by improper heat treatment process of mould, such as improper selection of heat treatment process parameters such as heating temperature, holding time and cooling speed. During the processing of plastic mold, cracks or … Improper heat treatment process…
Causes of Shrinkage Marks at Thicker Positions of Plastic Mold Parts Shrinkage is more severe at thicker locations of plastic mold parts, such as rib or protrusion, than at adjacent locations, because the cooling rate of thicker areas is much slower than that of surrounding areas. Different cooling rates lead to the formation of concavity … Causes of Shrinkage Marks…
Which kind of mould factory is better for cooperation? Foreign capital or private At present, there are many foreign, Taiwan, Hong Kong and private mold factories to choose from in the Pearl River Delta and Yangtze River Delta regions of China. The advantages and disadvantages of mold factories with various qualifications are as follows. (1) … Which kind of mould…
How large is it better to cooperate with mold suppliers? Large scale, medium scale or small scale? The choice in this regard depends on the situation. If we only consider the scale of the factory, many people will think that the larger the scale is, the better, because the scale is large and the facilities … How large is it…
How to select mold manufacturers with complete supporting equipment It is suggested that you should pay attention to one basic common sense when purchasing, that is, you must choose a manufacturer with complete supporting equipment, that is, a mold factory with "five essentials", that is, you must have supporting precision CNC machining center, slow wire … How to select mold…
How can the company effectively reduce the cost of mold procurement? For cost control, first of all, it is necessary to understand the expected order quantity of new products from the personnel of the Marketing Department? Is it huge?In the development and review stage of new products, if the estimated order quantity does not reach … How can the company…
Pits to be avoided when purchasing personnel select appropriate mold suppliers (1) Never blindly believe in low purchase prices. There are always some traps hidden behind the low price, which are unknown to us. We can either pass the shoddy goods off as shoddy ones or cut corners. We should know that any mold factory … Pits to be avoided…
How to choose a reasonable plastic mold cooperation factory? Reasonable selection of cooperative manufacturers is often the first step to successMany customers are blind when they choose plastic mold manufacturers. Now many small factories on the Internet cheat customers after packaging. They often offer much lower prices than their peers to tempt customers to place … How to choose a…
The engineer designs the product considering the rationality of plastic mold making Product engineers need to consider the rationality of mold making when designing productsMany customers only pay attention to the design and R&D speed of products at the initial stage of new product development, ignoring the communication with plastic mold manufacturers, resulting in unnecessary … The engineer designs the…
The selection criteria for plastic mold manufacturers are quality, cycle, service and priceAlthough price is important, quality, cycle and service are indispensable When it comes to manufacturing plastic products, choosing the right plastic mold manufacturer is crucial. With so many options available, it can be challenging to determine which one to select. There are several … The selection criteria for…
One minute understanding of the eight steps of plastic injection molding Injection molding, also known as injection molding, is an injection molding method. The advantages of the injection molding method are fast production speed, high efficiency, automatic operation, a wide variety of patterns, shapes from simple to complex, and sizes from large to small. Moreover, … One minute understanding of…
How to Select Wear Resistant Die Steel for Precision Plastic Injection Molding Injection mold is a tool for producing plastic products; It is also a tool to endow plastic products with complete structure and precise size. Injection molding is a processing method used in batch production of some parts with complex shapes. In the process … How to Select Wear…
What are the common engineering plastics for automobile parts molds? With the development of automobile lightweight and the increase of automobile production, the amount of plastic used in automobiles is increasing. In recent years, the market demand for energy conservation and consumption reduction has been exerting pressure on the lightweight design of automobiles. In order … What are the common…