Questions about casting molds, what is a casting stamping die

The three kinds of aluminum molds you mentioned may be that I have not seen them for a short time.

What we usually call aluminum molds is made of aluminum as the casting material, not aluminum as the mold material. If there's one important thing you're missing, it's sand molds.

1. In terms of characteristics, just this material can think of their different melting and boiling points and different ignition points. So steel molds are usually used to press metal products (that's what you call liquid metal). Wooden molds are usually made of something that is highly malleable at low temperatures, such as wax products, and food (moon cakes are usually molded in wood).

In the case of liquid metal, steel molds and sand molds are suitable. The melting point of steel is 1300-1400 degrees, and many metals have a lower melting point than it, such as zinc alloys have a melting point of about 440, aluminum alloys have a melting point of about 700, and magnesium alloys are even lower. So he can press some aluminum products, zinc alloy products.

And the biggest piece is plastic. In the case of sand molds, he basically does not have to consider the melting point.

2. The biggest difference between the products they manufacture lies in the difference in surface roughness. The surface accuracy of the steel mold is high, and it can be electroplated with a little polishing. Products made from sand molds usually do not require surface roughness.

3. The manufacturing cost of the mold is related to the shape, size and accuracy of the product.

The more complex the shape, the more difficult it is to make, and the more expensive it is.

The larger the product, the larger the mold, the higher the cost, and the more expensive it is.

The manufacturing cost with high schedule requirements is high, and it is also expensive.

These molds that you are talking about are actually referring to die casting molds and injection molds. And there are also some metal products that are manufactured by cold stamping dies.

Let's put it simply! You don't know much about it.

Steel molds are generally used to produce ceramic tiles.

Aluminum molds are generally castings, which refer to precision casting, and the products should be rough polished if they are not repaired. Adapts to small things, such as alloy products such as plumbing. I'll tell you a secret, so is the bra.

Wood molds are generally relatively large rough processing, and aluminum molds are matched. The wooden mold is shaped, and then the molten aluminum is poured into the wooden mold to form, which becomes the rough blank of the aluminum mold, and then it is finished.

**From top to bottom, the cost of mold is difficult to say. Look at the size, look at the difficulty. Wood mold is the cheapest, less than 500, a kilogram of aluminum is less than 20 yuan, and steel looks at the material.

Upstairs is a bit wrong, the sand core is another kind, which means that the core is made of sand, such as a faucet, and her shape is also made of 45 iron. For example, our machine is also made of this sand casting. lz is not talking about die casting molds...

It should be a forging mold, and since the landlord cares about these, he should also pay attention to gravity casting.

Summary. Hello, I'm here to help you solve this problem. What are the similarities and differences between kiss lost foam casting and investment casting?

1.The process of lost foam casting is: pre-foaming - foaming molding - drying - combination - hanging paint - modeling - pouring.

Quartz sand, dry sand, no binder is used for modeling. Vacuum pouring. 2.

The main difference between the two is that the mold is a cavity when it is poured by investment casting, and the mold is solid when it is poured by lost foam casting.

Hello, I'm here to help you solve this problem. What are the similarities and differences between kiss lost foam casting and investment casting? 1.

The process of lost foam casting is: pre-foaming-foaming-molding-drying-combination-hanging coating-modeling-pouring. Quartz sand, dry sand, no binder is used for modeling.

Vacuum pouring. 2.The main difference between the two is that the mold is a cavity when the liquid is made of investment casting, the mold is solid when the mold is poured in lost foam casting, and the foam plastic is buried and gasified and decomposed by the action of molten iron, and the molten iron is filled with the mold.

What about the similarities. Hello, I'm here to help you solve this problem. There are no similarities in kissing, only similarities and differences, oh, the above is all my reply to the imitation hall, I hope it can help you, I wish you a happy life

Hello, I'm here to help you solve this problem. What are the similarities and differences between kiss lost foam casting and investment casting? 1.

The process of lost foam casting is: pre-foaming-foaming-molding-drying-combination-hanging coating-modeling-pouring. Quartz sand, dry sand, no binder is used for modeling.

Vacuum pouring. 2.The main difference between the two is that the mold is a cavity when the liquid is made of investment casting, the mold is solid when the mold is poured in lost foam casting, and the foam plastic is buried and gasified and decomposed by the action of molten iron, and the molten iron is filled with the mold.

The stamping die, also known as the cold die, uses the pressure of the stamping machine to act on the die to change the shape of the metal placed in the die. There is a drawing die from the function of the mold. Punching dies.

Bending dies. riveting dies, etc. The working principle of the stretching die is to use the convex and concave die of the same shape to press the material through the pressing plate, and process the metal material according to the design needs to process various geometric three-dimensional products.

Among them, there are many factors to consider, such as the punch pressure, the elongation rate of the metal material, the complexity of the product geometry, the pressing force of the mold, the gap between the molds, etc. The punching die has a simple single punching die and a continuous die with a complex structure, and the main consideration is the machine tool pressure, die punching force, die discharge force, punching clearance and the structural rationality of complex shapes. There are many kinds of bending dies, including straight angles, acute angles, obtuse angles, and complex geometric shapes.

Summary. It is generally used as a basic process in casting production. Precision casting is divided into investment casting, ceramic mold casting, metal mold casting, pressure casting, and lost foam casting. Precision casting products, precision 、..

In casting, steel molds, sand molds, cast workpieces, is there any change?

It is generally used as a basic process in casting production. Fine punching and destruction of secret casting is divided into investment casting, ceramic casting, metal mold casting search, pressure casting leakage preparation, and lost foam casting. Precision casting products, precision 、..

Is there a change in the material I asked?

1) The mechanical properties of castings produced by metal molds are higher than those of sand mold castings. For the same alloy, its tensile strength can be increased by 25 on average, and the yield strength can be increased by about 20 on average, and its corrosion resistance and hardness are also impressively improved; (2) The accuracy and surface finish of the casting are higher than those of sand casting, and the quality and size are stable; (3) The process yield of castings is high, and the consumption of liquid metal is reduced, which can generally save 15 30; (4) No sand or less sand can generally save 80 100 modeling materials; In addition, the production efficiency of metal mold casting is high; Fewer causes of defects in castings; The process is simple, easy to realize mechanization and automation. Deficiencies:

1) High manufacturing cost of metal mold; (2) The gold pure trillion type is not breathable, and there is no concession, which is easy to cause defects such as insufficient washing, cracking of castings or white days of castings; (3) When metal mold casting is done for reed, the working temperature of the casting, the pouring temperature and pouring speed of the alloy, the time of residence of the casting in the casting, and the paint used are very sensitive to the quality of the casting, which needs to be strictly controlled. Therefore, when deciding to use metal mold casting, the following factors must be taken into account: the shape and weight of the casting must be appropriate; There should be enough batches; Completion of production deadlines.

Lost foam casting machining hard problems.

Lost foam casting technology is made of foam plastic into a solid pattern that is exactly the same as the structure and size of the parts, dipped in refractory coatings, dried sand molding, vibrating and compacting, and then pouring in molten metal after burning to make the pattern heat vaporize and disappear, so as to obtain a precision casting method of metal parts consistent with the shape of the pattern. Lost foam casting technology is a near-marginless, precise forming technology, suitable for the production of complex parts, known as "green engineering in casting". It has a number of advantages over other casting processes:

1) The dimensional accuracy of the casting is high and the surface roughness is low; (2) It increases the degree of freedom of casting structure design; (3) Loose sand is compacted and has no binder, which simplifies the casting production process and improves labor productivity; (4) It is easy to achieve cleaner production, etc. In the automotive industry, the casting technology has been widely used in the casting of complex parts such as engine blocks, cylinder heads, and motor housings. The most widely used metal materials for lost foam casting are mainly concentrated in ferrous alloys such as cast iron and cast steel, and their related technologies have been quite mature, but the development of lost foam casting technology of Al and MG alloys is relatively slow.

For example, there are many defects in Al alloy lost foam castings, and the rejection rate remains high, and the application and promotion are hindered. At present, the main problems restricting the development of AL and MG alloy lost foam casting technology are: poor filling ability, coarse and non-dense structure, and serious hole defects, resulting in low mechanical properties of castings.

It refers to the processing method of pouring the liquid state at room temperature but the solidified substance into a casting mold of a specific shape to be solidified and formed, the indexing circle of the gear is the benchmark for designing and calculating the size of each part of the gear, and the circumference of the indexing circle of the gear = d=z p, so the diameter of the scoring circle d=z p.

Castings are mainly used as blanks for machine parts, and some precision castings can also be directly used as machine parts. Castings occupy a large proportion in mechanical products, such as tractors, the weight of castings accounts for about 50 70% of the weight of the whole fiber machine, 40 70% of agricultural machinery, and 70 90% of machine tools and internal combustion engines.

Among all kinds of castings, mechanical castings have the most variety, the most complex shape, and the largest amount, accounting for about 60% of the total output of castings. The second is the steel ingot mold for metallurgy and the pipeline for engineering, as well as some tools in life.