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Product advantages of pipe bender moulds

2020-06-07

AluminumBenderMouldIt is recommended to use nylon raw materials, iron can also be bent, but the mold polishing level needs to be higher. The material of the mold is generally better to use beryllium copper.

Beryllium copper is a copper alloy whose primary alloying element is beryllium, also known as beryllium bronze. It is an elastic material with better performance in copper alloy, which has high strength, elasticity, hardness, fatigue strength, small elastic hysteresis, corrosion resistance, wear resistance, cold resistance, high conductivity, non-magnetic, no sparks caused by impact, etc. Series of good physical, chemical and mechanical properties.

The accuracy of the pipe bender mold is not the primary contradiction. Because the process of bending pipes is not so much science as art. The repeatability of the machine is more important.

When the setting is satisfactory, the pipe bending machine only needs to repeat the pipe bending. Now that the materials are expensive and the batches are small, it is necessary for aircraft manufacturers to look for machines that can be accepted by setting up products for the first time. Therefore, the first step in producing a good product is to have a sophisticated machine. The advantages of some precision tube benders are clear.

A single machine can be repetitive, and use the same data to produce the same product at different times; but a group of machines must be precise to produce the same product with the same data on any machine in between. The aircraft industry commonly uses rotating pull elbows, that is, the tubes are formed along a rotating bending die.

The production process is relatively simple: pipe positioning, pipe bending, pipe orientation to the next bend. The accuracy of the pipe bending machine mold can be divided into three bending pipe forming axes: the length of the bend (DBB), the plane of the bend (POB), and the angle of the bend (DOB). Typical aircraft duct linearity requirements are +/-.010 inches.

But because the duct is longer, it is more practical to rule the fundamental accuracy, and then add the stacking tolerance according to each foot. The accuracy of modern CNC pipe benders is +/-.004 inches, plus the stacking tolerance per foot+/-.001 inches. Repeatability is the entire length +/-.004 inches.

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