How to effectively solve the common defects in mold processing In the process of mold processing, what annoys us most is some common defects. These defects will directly lead to the performance of the workpiece, or even the workpiece can not be used here. Therefore, we must try to avoid some defects when we process the mold. Here is a magic weapon for this problem.
Reasonably select and trim the grinding wheel. The white corundum grinding wheel is better. Its performance is hard and brittle, and it is easy to generate new cutting edges. Therefore, the cutting force is small, and the grinding heat is small. The medium grain size is used in the grain size, such as 46~60 mesh. The medium soft and soft (ZR1, ZR2 and R1, R2) are used in the hardness of the grinding wheel, that is, the coarse grain and low hardness grinding wheels. Good self excitation can reduce the cutting heat. It is very important to select appropriate grinding wheel during fine grinding. GD single crystal corundum grinding wheel is more suitable for the high vanadium and high molybdenum condition of die steel. When machining hard alloy and quenching materials with high hardness, diamond grinding wheel with organic binder is preferred. The grinding wheel with organic binder has good self grinding performance, and the roughness of the ground workpiece can reach Ra0.2 μ m. In recent years, with the application of new materials, CBN (cubic boron nitride) grinding wheel has shown a very good machining effect, which is superior to other types of grinding wheels in precision machining on CNC forming grinder, coordinate grinder, CNC internal and external grinder. During grinding, the grinding wheel shall be trimmed in time to keep its sharpness. When the grinding wheel is passivated, it will rub and squeeze on the workpiece surface, causing burns on the workpiece surface and reducing the strength.
The cooling lubricant shall be reasonably used in mold processing to play the three roles of cooling, washing and lubrication, and keep the cooling, lubrication and cleaning, so as to control the grinding heat within the allowable range and prevent the thermal deformation of the workpiece. Improve the cooling conditions during grinding, such as using oil immersed grinding wheel or internally cooled grinding wheel. When the cutting fluid is introduced into the center of the grinding wheel, the cutting fluid can directly enter the grinding area to play an effective cooling role and prevent the workpiece surface from burning.
Mold processing is a critical process used in the production of various products. However, during the mold processing process, several common defects can occur, leading to reduced product quality and performance. To effectively solve common defects in mold processing, manufacturers can implement the following tips:
Warpage: Warpage is a common defect that occurs due to uneven cooling of the mold. To solve this problem, manufacturers can modify the mold design to ensure uniform cooling of the mold. They can also adjust the processing parameters such as temperature, pressure, and cooling time to minimize warpage.
Sink Marks: Sink marks occur due to shrinkage during cooling. To solve this problem, manufacturers can increase the mold's cooling time, reduce the injection speed, and increase the packing pressure. They can also modify the mold's design to increase the wall thickness in the areas prone to sink marks.
Flashing: Flashing occurs when the molten plastic seeps out of the mold's parting line, leaving a thin film of plastic on the surface. To solve this problem, manufacturers can adjust the clamping force, reduce the injection speed, and increase the mold temperature. They can also modify the mold's design to ensure a proper parting line seal.
Short Shots: Short shots occur when the mold cavity is not filled completely. To solve this problem, manufacturers can increase the injection pressure, adjust the temperature, and increase the flow rate. They can also modify the mold's design to ensure adequate venting and proper gate size.
Surface Imperfections: Surface imperfections such as pits, scratches, and bubbles can occur due to poor mold surface finish. To solve this problem, manufacturers can polish the mold surface, adjust the injection speed, and increase the mold temperature. They can also modify the mold's design to ensure adequate venting and proper gate size.
In conclusion, effectively solving common defects in mold processing requires manufacturers to implement the above tips. By modifying the mold design, adjusting the processing parameters, and conducting regular quality checks, manufacturers can reduce defects and improve the final product's quality and performance. This, in turn, leads to increased customer satisfaction, improved competitiveness, and greater success in the market.
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…
