Pipe Bending Tools
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- Main part of the pipe bender or tube bender.
- Determines bending radius and arc of bending.
- Manufactured with high strength, corrosion-free materials.
- Sturdy built with center line accuracy and centricity.
- Precise grooving for accurate bending.
- Used for clamping the part before initiating the bending process.
- Grips the pipe during bending operations.
- Various types of serration for holding the pipe (circular, linear, thread type, negative serration).
- Maintains pressure on the pipe during the bending process.
- Allows the pipe to slip and follow the tube bender die.
- Influences spring-back action, prevents wrinkles on the inner area of the pipe, and minimizes stretch marks.
The mandrel in tube bending plays a crucial role in supporting the tube during the bending process. Here are its key functions:
- Internal Support: Mandrels are used as internal support to mitigate defects such as flattening or crinkling of the inner radius of the bent tube. They help maintain the shape and integrity of the tube during bending.
- Preventing Defects: The primary purpose of the mandrel is to prevent common defects that may occur in the bending process, such as deformation of the inner surface of the tube. It ensures a smooth and consistent bend without compromising the quality of the tube.
- Selection Criteria: Choosing the proper mandrel type is critical for producing the desired bend. Factors such as the outer diameter of the tube (OD), wall thickness (WT), and bending radius (CLR) influence the selection process.
- Types of Mandrels: Various mandrel types, such as bullet mandrel, Plug mandrel, ball mandrel, Link mandrel and Wire mandrel, cater to specific applications based on tube characteristics and bending requirements.
The wiper shoe in tube bending plays a critical role in the bending process. Here are its key functions:
- Preventing Inner Wrinkles: The primary purpose of the wiper shoe is to prevent the formation of inner wrinkles in the tube during the bending operation. It achieves this by removing the void space between the mandrel and the roller of the pipe bender die.
- Enhancing Bending Quality: By eliminating the possibility of inner wrinkles, the wiper shoe contributes to achieving a smoother and more precise bend in the tube. This is crucial for maintaining the overall quality of the bent tube.
- Reducing Defects: Inner wrinkles can lead to defects in the bent tube, such as uneven surfaces or compromised structural integrity. The wiper shoe helps reduce these defects, ensuring a higher quality finished product.
- Critical in Tube Bending Precision: The wiper shoe’s role becomes especially significant when dealing with intricate bends or thin-walled tubes. Its precise function ensures that the tube maintains its shape and integrity throughout the bending process.
In summary, the wiper shoe serves as a crucial component in tube bending, contributing to the prevention of defects and the overall improvement of bending quality and precision.
- Essential components in bending kits.
- Strengthen and guide the tube during bending.
- Crucial for enhancing tube stability.
- Commonly used in almost every bending kit.
- In some cases, part of the booster system for complex applications.