The definition of mold and die in machinery
Male and Female Molds in the Mold Industry
A pair of molds is composed of an upper mold and a lower mold, which have different functions when matched with each other.
OVERVIEW OF MALE AND FEMALE MOLDS:
A pair of molds is composed of an upper mold and a lower mold. Male molds are called concave molds and upper molds. The design of the male mold is very important, and the structural characteristics of the female mold itself vary with the structure of the product and the processing method of the mold. has considerable flexibility. Most of the molds are divided into two parts, and these two parts can fit together, so there are male molds and female molds. Generally, the more fixed and concave piece is the master mold.
MANUFACTURER OF MALE AND FEMALE MOLDS:
For a cavity with a complex shape, it is more difficult to process if the integral structure is adopted. Therefore, a combined die structure is used. At the same time, the performance of the material on the edge of the male mold can be made lower than that of the female mold, which avoids the uneconomical use of the same material for the integral female mold. The inlaid structure of the female mold can facilitate exhaust through the gap and reduce the thermal deformation of the female mold. For the parts that are easy to wear in the master mold, the insert type is adopted, which can facilitate the maintenance of the mold.
The elements that should be considered when designing the shape of the punching male mold are the life of the mold and the shape of the escape angle, the shear angle of the male mold, and the division of the male mold. Die life and shape of escape angle: This design is a very important matter. If the design is incorrect, it will cause damage to the punch, blockage or floating of punching chips, and occurrence of burrs and other poor stamping processes.
Shearing angle of the male dies: To reduce the punching force when the shape is punched, the male die can be designed with a shearing angle. When the shearing angle is large, the punching force will be greatly reduced, but it is easy to cause inflection and deformation of the product.
Dividing the male mold: The male mold must be subjected to finishing such as forming and grinding. Because of its concave shape, the grinding tool is not easy to enter, so it must be divided.
Dividing the male mold: The male mold must be subjected to finishing such as forming and grinding. Because of its concave shape, the grinding tool is not easy to enter, so it must be divided.
Design of Bending Master Mold Design of bending master mold, to prevent the occurrence of spring back and excessive bending, the part shape of a U-shaped bending master mold is a combination of double R and straight part, and it is best to approximate R shape. The shape of the R part should be polished after forming grinding or NC electrical discharge machining.
THE FUNCTIONS OF MALE AND FEMALE MOLDS:
The mold generally includes two parts, a movable mold and a fixed mold (or a punch and a concave mold), which can be divided and combined. When separated, the parts are taken out, and when closed, the blanks are injected into the mold cavity to form. The mold is a precision tool with a complex shape, which bears the expansion force of the blank, and has high requirements on structural strength, rigidity, surface hardness, surface roughness, and machining accuracy. The development level of mold production is one of the important signs of the level of machinery manufacturing.
learn more
FIVE TIPS FOR IMPROVING PLASTIC INJECTION MOLDING DESIGNWhile designing two multi-cavity molds for a product that will be used in a high-temperature environment, I found four key considerations that universally apply to any project for any application. The following is my experience designing the mold for this part...
|
WHAT IS HIGH-PRESSURE DIE CASTING?The term injection molding refers to the production of plastic parts while die casting involves production in metals. Die casting is most suited to softer alloys. In the past, tin and lead were popular materials for the die-cast parts. Today, zinc, aluminum, and magnesium-based alloys are the most common. High-strength structural automotive and aerospace components are produced, as well as many consumer goods...
|
YOU NEED TO CONSIDER POINTS MOLD & DIES MANUFACTURING ABOUT SURFACE FINISHESOne of the most important things to consider when you’re looking to create a mold is surface finish. Depending on what the final part is being used for and the material it is being made out of, the surface finish of your mold can dramatically change how it looks...
|