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Articles tagged with "ram"
Results: 23
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8 ways to keep your shear in top shapeImproving uptime and reducing maintenance when using shears for high production could mean following a few key steps.
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Successful tube hydroforming: Watching parameters, accurately simulating the process yield good resultsA typical tube hydroforming system is shown in Figure 1. Within this system, a host of factors must be taken into account, from starting tube geometry and material properties to the quality of the final part (such as thickness distribution and dimensional accuracy).
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Hydroforming of tubes, extrusions, and sheetRecent advances at the University of Stuttgart and acfross the industry have opened doors for hydroforming all kinds of materials and shapes.
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Contract stamper increases die life and draw die productivity: Link-drive presses, value-added services, and employee initiative keep the company competitive |
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Experimenting with flexible blank holder force control: Prototype shows promise for difficult-to-form materialsThe quality of deep drawn sheet metal products is determined largely by the rate at which a sheet is drawn into a die. Varying blank holder force (BHF) as a function of time or the press stroke is of great importance.
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Equipping Your Press With the Right Tonnage MonitorThis article explains why it's useful to monitor press tonnage, the types of tonnage monitors available, the choices for mounting load sensors, calibrating a monitor, and options available for tonnage monitors.
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Standardizing finger tooling: Modular systems provide alternative to dedicated transfer toolingModular, adjustable, articulated finger tooling for transfer presses may provide the flexibility you need to increase productivity and efficiency in your stamping operation.
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Die Design for flat parts: Achieving perfection in a difficult taskFlatness is one of the most difficult part characteristics to achieve in a conventional stamping die.
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Gettin' down with downtime: Reducing unprofitable die changeover timeReducing the time it takes to change dies it important to all stampers, especially for custom stampers that run small-quantity jobs. This article summarizes the ways in which automation has helped in this process and then covers two die change methods that are used in a quick change system: the standardized clamping system and the V-notch, or key, system.
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Die width selection |
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Selecting a pressure system for a stamping dieAuthor's Note: Before I begin, I would like to take this opportunity to express my sincere thanks to thefabricator.com's readers. I hope you have enjoyed the stamping articles, and I am excited about writing for 2004. I also would like to wish all of you a great holiday season as well as a prosperous and successful year. Best holiday wishes!Art
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Rolling bolsters bolster productivityTo thrive and experience growth and healthy profits, a stamping company must have systems in place that allow flexible manufacturing and minimize press downtime. Changing from one job to the next in the least amount of time possible is one of the primary factors impacting productivity and a company's ability to adjust to the changing needs of customers quickly and efficiently.
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Troubleshooting compression bendingYou can achieve nearly trouble-free bending by being aware of the causes of typical compression bending problems and by correctly operating and maintaining the compression bender.
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Comparing single-cut and dimple-free tube mill cutoffs: When to employ each systemThis article covers the application of single-cut and dimple-free cutoff shear technologies as they are applied to contemporary high-speed tube mills.
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Can I form a box that deep?There's no reason you can't form sharp, deep boxes with a press brake consistently. You just have to be familier with what your tooling can and can't do under certain circumstances.
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The Brakes: Press Brakes and You -- Preventing common mistakes on press brakesMost common mistakes made while operating press brakes can be avoided with a little diligence and awareness of where others have gone astray.
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The Brakes- Press Brakes and You -- How to get the most out of your press brakeProblems with your press brake imperil what could be the most valuable machine you have. Take pains to ensure the health of this valuable piece of equipment.
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Brake Line: Press Brakes and More: Planning to cut corners on safety?Press brake safety is a common sense issue.
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The Brakes: Press Brakes and You -- Whose business is safety? Everybody'sWhat sort of safety measures needed in your shop depends somewhat on your equipment, but making your press brake a safe piece of equipment is largely a matter of old-fashioned common sense.
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In search of the perfect bend: Advancements in press brake angle measurement and bend springback systemsPress brake manufacturers have made tremendous advances in the art of machine design and manufacturing.
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Making your own punch and diesHow many times have you looked through huge piles of blueprints for a prototype part or short-run job and thought, "If only I had that tool, this job would be a piece of cake?"
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New PC-based controls open path to better press brake utilization: Control improvements simplify operator usePress brake forming always has been a labor-intensive process. Shrinking lead-times and smaller lot sizes demand more frequent setups, which cut into productive output hours and put more pressure on manufacturing efficiencies. Fabricators need to find ways to reduce machine downtime for setup and operator adjustments.
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Adaptive bending: Achieving accurate first-piece bending resultsAdaptive bending allows press brake operators to measure a bend angle during the forming process and feed the information to the numerical control. The article discusses springback and how to determine it and the fact that when air bending, 90 percent of problems result during initial setup, and only 10 percent result from springback. It also discusses using an angle control system, methods of measuring angles, and requirements for angle measurement systems.
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