Design Characteristics of Forging Molds for Nonferrous Alloys
Forging mold is an important part of metal forming process that shapes the workpiece into desired size and form. As compared to ferrous alloys, the forging molds of nonferrous alloys have some unique design characteristics due to the diverse properties of these alloys. This paper will discuss the design characteristics of forging molds for nonferrous alloys.
The first design characteristic of forging molds for nonferrous alloys is that they require higher temperatures during forging. Nonferrous alloys typically have lower strength than ferrous alloys and therefore require higher temperatures during forging to achieve the desired shape and size. The higher temperatures also help to minimize the chance of cracking and porosity formation in the workpiece. Additionally, nonferrous alloys are typically soft and ductile, so they require less force than ferrous alloys to deform the workpiece.
The second design characteristic of forging molds for nonferrous alloys is their sensitivity to wear and tear. Nonferrous alloys are typically softer than ferrous alloys, and as a result, they are subject to be more prone to wear and tear. Therefore, it is important to ensure that the design of the forging molds for these alloys is able to resist and withstand wear and tear. Additionally, the higher temperatures required for forging can accelerate the rate of wear and tear of the mold.
The third design characteristic of forging molds for nonferrous alloys is the need for additional flows. Nonferrous alloys are typically highly entropic, which means that they need additional flows such as gas, steam or water to ensure adequate and effective forging. These additional flows help to reduce work hardening, as well as improve the dimensional accuracy of the workpiece and improve the overall surface finish.
Forging molds for nonferrous alloys are generally divided into three types: finish forging molds, pre-forged molds and blank forging molds. Finish forging molds are used for the final finishing process of the nonferrous alloy, and they typically have circular or oblong cavities that allow for easier and more accurate forming of the workpiece. Pre-forged molds are used for the preliminary forging process, and they typically have angular cavities that help to produce angled surfaces on the workpiece. Blank forging molds are used for the most basic shape of the workpiece, and they typically consist of inner and outer molds with no cavities that allow for the most basic shape of the workpiece.
In conclusion, forging molds for nonferrous alloys have some unique design characteristics due to their different properties compared to ferrous alloys. These characteristics include the need for higher temperatures, sensitivity to wear and tear, and the need for additional flows. Additionally, forging molds for nonferrous alloys are generally divided into three types: finish forging molds, pre-forged molds, and blank forging molds.
