Forging manufacturers take you through the difference between forging and casting
When users are choosing products, they need to choose the process to make the product. Some products need to be cast and some need to be forged. What is the difference between forging and casting? How to distinguish between forging and casting? Take a look with the forging manufacturer!
First, forging
Forging is the use of forging machinery to apply pressure to the metal billet, resulting in plastic deformation, so as to obtain a certain shape, size and mechanical properties of forgings. Forging can eliminate the cast air holes, welding holes, etc.. The mechanical properties of forgings are much better than those of castings of the same material. Forgings are mostly used as important parts in machinery with high loads and severe working conditions. Forgings are often used in addition to simple rolled plates, weldments and profiles.
Secondly, casting
Casting is the pouring of molten metal into a finished mould or sand form. When the steel has solidified, it is the shape that the user wants.
(1) Forging materials are generally alloy and carbon steels of various compositions, followed by alloys such as titanium, magnesium, aluminium and copper. For example, liquid metals, ingots, metal powders and bars are some of the materials in their original state. The cross-sectional area of the metal before denaturation and the cross-sectional area of the die after deformation is called the forging ratio. Forging manufacturers can only choose the correct forging ratio to better improve the quality of construction machinery forgings, reduce the increase in scrap rate and reduce costs.
(2) Casting is a casting processing method in which the raw metal is melted into a liquid and then poured into a mould to obtain the required shape after cooling, solidification and cleaning. Forging manufacturers choose this casting method, which is more suitable for various shapes of complex objects. Forging out of the workpiece will be better, good toughness; and forging factory casting engineering machinery forgings, shape and size are more accurate, processing volume is also relatively small.
(3) According to the forming method, forging can be divided into two types.
① closed forging. This forging method is the metal raw materials into a certain shape of the forging die cavity, through the pressure deformation, generally can be divided into rotary forging, extrusion, cold heading and die forging. According to the deformation temperature, forging can also be divided into hot forging, cold forging and warm forging.
② Free forging is also called free forging. It is the use of pressure or impact to deform the metal between the upper and lower arches, so as to obtain the required forgings. This forging method mainly has mechanical forging and hand forging.
The above is a comparison of casting and forging shared by the forging manufacturer. In fact, both have their own merits and users can choose different production methods according to the products they need. Forging manufacturer's explanation here, later will share more relevant knowledge with you. I like to pay attention to ~
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