Methods are as follows:
One method is simple wiring, using a dedicated steel pipe bending machine, without the need for dies. One machine includes bending and cutting.
Another method is traditional wiring: it requires two punches and two sets of dies.
First, for cutting, a set of shearing dies is needed, using ordinary cold work tool steel, with conventional heat treatment.
Single-line wiring requires two sets, one standby and one in use. You need to consider the time for sharpening and changing tools.
Bending is also done using a punch press, where the stamping tonnage is calculated based on the finished product. The most important aspect is calculating the die springback angle, based on factors such as material diameter, material yield strength, bending radius, punch press tonnage, etc. However, nowadays, the places making the dies will help you with these calculations; you just need to inform them of the required processing accuracy.
Round steel refers to solid long steel bars with a circular cross-section. Its specifications are indicated by the diameter in millimeters, for example, "50" represents round steel with a diameter of 50 millimeters. Round steel is divided into three types: hot-rolled, forged, and cold-drawn. The specifications of hot-rolled round steel range from 5.5 to 250 millimeters.
Small round steel between 5.5 and 25 millimeters is mostly supplied in straight bundles and is commonly used for reinforcing bars, bolts, and various mechanical parts. Round steel larger than 25 millimeters is mainly used for manufacturing mechanical parts or as seamless steel pipe blanks.
Carbon structural steel, also known as ordinary carbon steel, has a wide range of carbon content, performance, and limits on phosphorus, sulfur, and other residual element content. According to the guarantee conditions for delivery, it is divided into three categories: Class A steel guarantees mechanical properties. Class B steel guarantees chemical composition.
Class C steel guarantees both mechanical properties and chemical composition, commonly used in the manufacture of important structural components. Currently, the most produced and used in China is A3 steel with a carbon content of around 0.20% (Class 3 steel), mainly used for engineering structures.
