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Precision In Practice: When To Roll To Torque Vs. Size In Mechanical Joining

2025-08-07T13:02:54-05:00

Mechanical joining is a fundamental manufacturing process used to create a tight seal between tubular products and their corresponding a fittings or flanges. This method relies on compressing the tube’s outer diameter against a fixed container, forming a secure and leak-tight seal. A key decision in this process revolves around whether to roll to size or roll to torque, each of which offers advantages in certain applications.

Precision In Practice: When To Roll To Torque Vs. Size In Mechanical Joining2025-08-07T13:02:54-05:00

The Critical Role of Torque in Tube Expansion: Why the Right Motor Matters

2025-05-06T14:56:48-05:00

For years, tube expansion relied heavily on the subjectivity of "rolling to size or feel". The issue is that what one operator "sees, hears, or feels" could drastically differ from another, leading to variability and a high potential for error. The advent of torque control revolutionized this process, significantly reducing operator error and ensuring consistent, repeatable results across the board. While torque control is essential for consistency, the success often hinges on one critical factor: selecting the right motor for the job. Understanding why torque matters and the potential pitfalls of choosing the wrong motor is crucial for achieving reliable and lasting tube to tube sheet joints.

The Critical Role of Torque in Tube Expansion: Why the Right Motor Matters2025-05-06T14:56:48-05:00

Why Won’t This Tube Expand

2025-04-18T13:12:05-05:00

When expanding heat exchanger tubes, achieving the proper wall reduction is crucial for a secure and leak-free seal. Sometimes, however, tubes fail to expand sufficiently, hindering the integrity of the vessel. This article outlines common causes and troubleshooting steps for incomplete tube expansion.

Why Won’t This Tube Expand2025-04-18T13:12:05-05:00

Alfa Laval Reduces Expansion Cycle Times By 50%

2022-06-13T12:57:29-05:00

Alfa Laval ACE, located in Broken Arrow, OK, specializes in heat transfer, separation, and fluid handling technology. With a focus on producing quality air coolers for their customers, rolling consistency was of utmost importance. With their current tube rolling method relying heavily on operator feel to regulate the amount of wall reduction, the accuracy of wall reduction was lower than desired. This resulted in too much time spent re-rolling tubes.

Alfa Laval Reduces Expansion Cycle Times By 50%2022-06-13T12:57:29-05:00

Choosing The Right Rolling Motor

2022-06-13T12:57:47-05:00

With a wide variety of rolling motors on the market, choosing the right one can seem overwhelming. There are several factors to consider when selecting a rolling motor. Power source, torque control, RPM, torque range, and the style of the motor will vary depending on the application.

Choosing The Right Rolling Motor2022-06-13T12:57:47-05:00
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