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Articles tagged with "tube bending"
Results: 23
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Cutting to the chase: ArrayArray
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Fabricating: Employment or enjoyment?: Making the most of metal doesn't have to be a full-time jobRobert Warnett didn't take many vocational classes in school, never spent much time reading about welding or fabricating, and never had a job in a shop. However, he made quite a few friends in the fabricating industry and made a hobby out of fabricating. Being a hands-on type of guy, he has capitalized on the knowledge and experience he has acquired over the years to do something that many people only dream about doing. He builds custom motorcycles.
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Error-free tube fabrication: Electronic sensing devices provide an ounce of preventionManufacturing processes are prone to variances, resulting in manufactured products that do not conform to specifications. Dozens of types of electronic sensors and measurement systems are available that fabricators can use to verify that their products are not defective. Understanding what types of sensors are available and how they work are the first two steps in implementing electronic sensing devices for quality control.
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Bend process monitoring—small changes lead to big results: Mandrel force monitor detects broken mandrels, other process changesConventional quality control in tube bending operations usually means detecting the number of links on a tube bending mandrel. When such a system detects that a mandrel link is missing, it shuts down the system so personnel can discard the last bent tube and replace the mandrel. Unfortunately, the broken mandrel link usually is a symptom of a larger problem—one that may have produced poor-quality parts long before the mandrel broke.Another method, process variation monitoring, measures the tension on the mandrel and alerts the equipment operator when the tension changes. This lets the manufacturing personnel know that a problem is developing while it is still small and manageable.
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Using mandrels for bending tube: Type and placement are critical for successful bendingThis article discusses bending with mandrels. It illustrates six major types of mandrel and the most appropriate use for each. It also describes common bending problems and the most likely solutions.
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Achieving success with rotary draw bending: Right choices, better bendsThis article discusses several aspects of rotary draw tube bending
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Imagination fabrication: To be a playground equipment fabricator, you gotta have gameBCI Burke, Fond du Lac, Wis., is the oldest playground and park and recreation equipment manufacturer in the country. As the company grew and its product offerings and colors multiplied, it found it needed to address problems with long leadtimes. Burke looked at every possibility for improvement, including processes improvements, inventory organization, manufacturing equipment purchases, and personnel productivity improvements, including crosstraining.
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When a good tube bends bad: ArrayHave you ever started with what you thought was a good tube, ended with a bad bend, and wondered where you took a wrong turn? Correcting for defects requires some detective work, and an understanding of the bending process. This article examines tube defects and offers fixes.
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Understanding how rotary tube and pipe cutting works: Why 25-year-old technology is still aroundInnovations and new developments in rotary tube and pipe cutting, such as high-speed cutting, minimal heat generation, special holding collets, and automatic loading, trim and sorting have reduced or eliminated time required for secondary operation, improved efficiency, and reduced costs.
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The wiper die's feathered edge: The large impact of small thingsThe mechanical aspects of rotary draw tube bending haven't changed since modern tooling was developed 50 years ago. Likewise, the role of the tooling (mandrel, pressure die, bend die, and wiper die) hasn't changed. However, tube fabricators these days have many choices in regard to the tooling, especially wiper dies. Choices include material, rake angle, and whether the wiper die's feathered edge is fully machined or honed by hand.
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High-speed cutting, end-finishing -- a means to an end: Fluidity is keyLeading Edge Hydraulics improves tube cutting efficiencies with a high-speed cutter, plus integrated end forming for its fluid power tube manufacturing.
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All-electric tube benders in control: A look under the hood at characteristics, applicationsAll-electric tube bending machines use electric, closed-loop servomotor axes to control the motion and speed of the bend tooling, providing programmable control over the range of each axis. Otherwise, all-electric tube bending machines are basically rotary draw benders—the design of which have not changed significantly for 50 years.
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Top five questions about anodizing architectural tube: Science and nature come togetherAnodizing combines with nature to create one of the world's best metal finishes. It is the process of electrochemically controlling, accelerating, and enhancing oxidation of an aluminum tube, creating a durable, scratch-resistant coating on the surface comparable to a sapphire. Architectural anodize finishes are limited to certain colors, and it is impossible to produce a perfect color match. Perform as much bending and forming as possible before finishing.
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Setup or cover-up?: Too much bending pressure can — but shouldn’t — compensate for poor tooling setupSetting up the tooling for a tube or pipe bending machine isn't as simple as it seems. Many variables are involved, making this a difficult task. A further complication is the tendency for many operators to adjust various pressure settings to compensate for poor tooling setup. The bend might turn out okay, but at a cost—a loss of process control and shortened tool life. Using a simple four-step setup process is the key to good bending, process control, and optimal tool life. This setup procedure also facilitates troubleshooting.
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Custom or standard?: Bender tooling choice not to be taken lightlyFabricators have two broad choices in the bend tooling they select: standard or custom. Using standardized tooling provides cost-effective versatility. A well developed tooling inventory can accommodate nearly any bending job. On the other hand, custom tooling is designed for speed and efficiency. Customized tools make one part and one part only as fast as possible. The trade-offs boil down to time and money: standardized tooling requires more time to set up but costs less. With custom tooling, changeover is quick, but the tooling costs more.
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Reflections on a perfectly symmetric ellipse: Full-time sculptor, part-time fabricator overcomes bending challengeSculptor and fabricator Brett Richards of BR Sculpture, Chicago, got a contract to make a frame for an oval mirror—a length of square tubing bent to a perfect ellipse. Not knowing too much about the vagaries of bending tube, he figured he'd spend a few thousand dollars on a simple bender. After searching for months, he happened to see an elliptical shape made from square tubing in a vendor's booth at FABTECH.
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Bending nonround tubing: Considerations for square, rectangular, and oval tubingWhile bending round tube and pipe involves many variables and challenges, the difficulties in bending nonround shapes are more numerous and complicated. Among the most common shapes are square, rectangular, and oval (elliptical and flat-sided). None react to the bending force in the same way that round shapes do, so understanding how the material reacts is the first step in learning about bending nonrounds.
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Doblando tubos no redondos: Consideraciones para tubos cuadrados, rectangulares y ovalados |
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When a good tube bends bad - Part I: How to Prevent Tube From Taking a Bad TurnHave you ever started with what you thought was a good tube, ended with a bad bend, and wondered where you took a wrong turn? Correcting for defects requires some detective work, and an understanding of the bending process. This article examines tube defects and offers fixes.
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Cutting to the chase: ArrayArray
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When a good tube bends bad: ArrayHave you ever started with what you thought was a good tube, ended with a bad bend, and wondered where you took a wrong turn? Correcting for defects requires some detective work, and an understanding of the bending process. This article examines tube defects and offers fixes.
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When a good tube bends bad - Part II: How to prevent tube from taking a bad turnHave you ever started with what you thought was a good tube, ended with a bad bend, and wondered where you took a wrong turn? Correcting for defects requires some detective work, and an understanding of the bending process. This article examines tube defects and offers fixes.
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Top 10 misconceptions about automation: Myths, misunderstandings prevent fabricators from automatingFabricators frequently react to the idea of automation with powerful objections, many of which are based on information that is obsolete, incomplete, or simply incorrect. The reality is that automated systems can increase quality, profitability, and production rates; reduce costs and setup times; improve safety; simplify machine operation; and provide manufacturing flexibility.
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