For Lightweight Parts and Components Deep drawing is a process that can be used

For Lightweight Parts and Components Deep drawing is a process that can be used to produce metal parts and other types of components. This process is suitable for forming lightweight parts that are highly corrosion-resistant, and it also results in thinner cross-sections compared to stamped parts. In addition, deep drawn parts can be reverse engineered to meet a variety of specifications. The process requires a die and tooling plates to form the final part. It is possible to use deep drawing for a wide range of applications, including aircraft parts, household appliances, and instrumentation. Deep drawing is also commonly used in the aerospace industry, but it can be applied to any industrial sector. Unlike stamped parts, which are formed through the application of a continuous stream of sheet metal blanks, deep drawn parts are produced through the application of a progressive die set in a single forming press.
The process is usually performed with a single-point extrusion die that is capable of providing maximum dimensional accuracy. Sheet metal thickness is generally maintained at a minimum, though this may vary depending on the material. A limiting draw ratio (LDR) is typically included with the specifications of the raw materials. However, determining LDR for complicated parts is difficult. When the sheet metal thickness is maintained at a constant level, the surface area of the blank is approximately equal to the surface area of the intermediate shapes. For this reason, it is important to design the deep drawing process to ensure that the diameter of the blank is reduced to no more than the material can handle. For deep drawing, the blank holder surface should be smooth and free of defects. During the drawing process, the forces between the punch and the punch holder must be optimized. To improve the quality of the finished part, lubrication should be applied to both the die and the blank holder.
Lubricants can be oil, soap, or heavy-duty emulsions. These types of lubricants help reduce friction between the tool and the product, which can enhance the surface finish of the product. Another consideration in deep drawing is the redrawing process. Typically, the first redraw is performed at about 20% to 30% of the original size. The second redraw is performed at about 13% to 16% of the original size. Since deep drawn parts are manufactured using a two-piece bending system, sharp angular bends can be achieved. Alternatively, a single forming press can be used to achieve these same sharp bends. Depending on the part, the process can be used to create parts that require close ends. This avoids the need for welding or cutting multiple pieces. There are different processes available for prototypes and small production runs. Some of the services offered include deburring, degreasing, and plating. Other services include assembly, high-speed stamping, and compression. Because the process is able to produce parts with closed ends, it is often used in the aerospace industry, aviation, and household appliances. The cross-sections of deep drawn parts are thinner than those of stamped parts, which gives them a better surface finish.