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Content tagged with "model"

Results: 31

Article

June 8, 2004
Safeguarding machines with an ergonomic spin Figure 1 While the NSC publications provide generous guidance, two aspects they do not address fully are the application and implication of ergonomics and human factors in the design of machine safeguards. The National Safety Council (NSC) published the fifth edition of the Power... Read more...

Article

June 8, 2004
Dangerous curves Provocative lines and innovative materials are the hallmarks of luxury car manufacturer Jaguar Cars Ltd. Jaguar has reaped the benefits of aluminum since 1922, when the company, then known as the Swallow Sidecar Co., designed sidecars out of lightweight aluminum panels. Since then the... Read more...

Article

June 8, 2004
Revving up weld quality Before introducing new resistance welding systems, Ford Motor Company's New Model Product Development Center was cluttered and dark, and it was difficult to work there because of the high number of weld controls and weld guns being used (left). Installing weld controls and associated... Read more...

Article

January 13, 2004
Producing side-impact profiles Euro-NCAP, which stands for European New Car Assessment Program, was introduced in 1997 by five European governments, together with the European Commission. The results of this program are followed closely by the general public, so much so that hardly any automobile producer would risk... Read more...

Article

January 13, 2004
Appliancemaker reduces downtime with stamping press feed system Most of the parts are stamped out of light-gauge metals. "On the majority of our machines, we're feeding 0.0040 inch and less," said Dan Partin, senior process engineer at Whirlpool. Partin reported that the company had noticed excessive downtime on some of its key presses that were running for... Read more...

Article

January 13, 2004
Hydroforming heats up Hydroforming at Higher Temperatures The majority of hydroforming knowledge is based on steel. Steel's characteristics make it a favorable choice for many products, and steel has been the dominant material in many industries, especially automotive, for decades. Lately, though, hydroformers are... Read more...

Article

December 11, 2003
Family business going strong after 100 years Editor's Note: The Peddinghaus Corporation, featured in this article, is the longest-standing active member of the Fabricators & Manufacturers Association, Intl.® (FMA), the company behind thefabricator.com. FMA and thefabricator.com salute Peddinghaus and wish the company continued... Read more...

Article

October 23, 2003
Programming multiple robots Figure 1 Two robots can weld on the left side of a large vehicle frame, while two other robots weld on the right side, with all robot motion synchronized by a multiple-robot control. Multiple Robots, Single Process Multiple-robot control can increase productivity in workcells in... Read more...

Article

October 9, 2003
Using finite element analysis to roll-form tubes Figure 1 Roll forming causes yield stress, flow stress, and hardness variations in material properties around a tube's circumference. These variations may lead to premature bursting or excessive thinning in hydroformed parts. This makes it necessary to determine the effect roll forming... Read more...

Article

July 10, 2003
The problem with quality The companywide scores, which represent the number of problems per 100 vehicles, are as follows: Considerable variation exists among individual divisions of some OEMs. At GM, for example, Cadillac's results prove to be the second best in the survey (103), while Hummer's are the lowest (225).... Read more...

Article

June 26, 2003
Press brakes: the quest for a happy ending Cast: Press brake manufacturers and users. Genre: Suspense/Drama/Horror. Plot: Our hero, Press Brake Professional, fights a life-and-death struggle with the forces of Foreign Competition and his nefarious gang of cohorts—Tiny Orders, Slow Economy, and Skilled Labor Shortage. With... Read more...

Article

June 26, 2003
Taking an integrated build approach to stamping tool tryout North American tool buyers are pushing to lower tool costs by: Seeking foreign suppliers with low-cost structures resulting from low labor costs and government subsidies. Aggressively advancing math-based tools, particularly in engineering, to improve design quality and reduce die rework.... Read more...

Article

June 12, 2003
Dealing with internal pressure in free hydraulic bulging Finite element analysis (FEA) is a numerical process that treats a single item, such as a metal tube, as a large number of small, individual components, or finite elements. It performs calculations on each of the elements and uses the result to predict the deformation behavior of the... Read more...

Article

May 29, 2003
Job shop reduces costs, improves laser's output The Laser Station regulator can be mounted to a secured surface to eliminate movement and potential leakage at the tubing connection. Such multilevel capabilities enable a customer to reduce the number of vendors it needs, thereby lowering handling and administration... Read more...

Article

May 29, 2003
Predicting the service life of galvanized steel Zinc, which has been used to hot-dip-galvanize steel for 250 years, provides 50 to 75 years of corrosion protection in many environments. Empirical data collected about hot-dip galvanized (HDG) steel field performance from 1940 to 1980—in environments ranging from industrial to... Read more...

Article

May 15, 2003
Riding on the cusp of something great The sculptures' pieces seem only incidentally connected, barely touching, much less literally supporting and balancing each other. They appear more like glittering ornaments dangling from a mobile than weighty metal structures connected by fate and strong welds. Ironically, Robb said he... Read more...

Article

March 28, 2002
Taking a look at performance appraisals As our work lives continue to become more complex, many managers are looking for assistance in the ongoing effort to achieve results—often with fewer resources. In the middle of all this, it may be helpful to develop a simpler strategy when attempting to communicate your expectations to... Read more...

Article

December 13, 2001
Hydraulic workholding from scratch Hydraulic clamps can be used in place of manual or toggle clamps to hold a workpiece or tool in place during stamping. The foundation for effective hydraulic workholding is built on component selection and system connection. Whether the system is simple or complex, the job at hand basic... Read more...

Article

October 25, 2001
Common barricades on the road to lean Shops trying to create a lean manufacturing environment within their businesses sometimes make common mistakes that could be avoided with forethought and a little knowledge of the pitfalls faced by lean pioneers past. Self-imposed Inflexibility Job shops, make-to-order shops, and... Read more...

Article

October 11, 2001
Building a better business model: Strategic planning basics for automotive stampers to improve profit Automotive metal stamping companies today face increasing challenges, including lower sales volumes, greater price reduction demands from customers, and rising energy and labor costs. During such challenging times manufacturers tend to focus on short-term tactical issues such as employee... Read more...

Article

August 16, 2001
Tips on Lean Manufacturing: Mastering the stop 'n' go of your shop's work flow Kaizen—or continuous improvement—is based on the concept that there is always an opportunity to modify, enhance, or improve any process. For example, Henry Ford's model worked well for decades, but then representatives of Toyota Motor Corp. showed the world that improvement was... Read more...

Article

July 12, 2001
Experimenting with flexible blank holder force control: Prototype shows promise for difficult-to-form materials The 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. In the beginning of a deep drawing stroke, wrinkling of the sheet can become... Read more...

Article

July 12, 2001
Examining press feeding options: Considerations that determine a feed's effectiveness In most cases, a press feed must meet three criteria to be successful. First, it must be flexible in terms of setup. Second, it must deliver the material with sufficient precision into the tool, and third, it must feed at the proper time. Other important considerations that determine the... Read more...

Article

July 12, 2001
Steel industry anything but status quo: Next generation of distributors set to lead wave of change   The other day, I received one of those greeting cards that plays a tune when opened. That card contains more computer power than existed in the world in 1950. When avoiding her studies, my daughter entertains herself with a hand-held Nintendo® Game Boy®, which contains... Read more...

Article

June 15, 2001
Whale watching: A doctor's love of whales leads to a complex welding project Object Orcas, or killer whales, have many of the characteristics loved and respected by man. Their size, strength, and speed allow them to hunt a range of fish, birds, and aquatic mammals, earning them the reputation as the ocean's top predator. They are intelligent animals that can be... Read more...

Article

June 15, 2001
Successful tube hydroforming: Watching parameters, accurately simulating the process yield good results A 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). Each of these... Read more...

Article

February 19, 2001
Shielding gas consumption efficiency-- Part I: Spend a penny, save a dollar Editor's Note: This is the first of a two-part article that discusses shielding gas efficiency. The second part also appears on thefabricator.com. Although argon is the most commonly used shielding gas for solid-wire electrode applications, many managers and welders understand little about... Read more...

Article

February 19, 2001
Effective simulation of hydroforming: Current capabilities and requirements for the future Simulation is used in the hydroforming process to replace the experimental investigation and tests required in a real tryout process. Simulation of hydroforming becomes especially relevant if the feasibility of the metal forming processes has to be checked before expensive tools are actually... Read more...

Article

February 19, 2001
Pressure-sequence and high-pressure hydroforming: Knowing the processes can mean boosting profits Closed-section structures have long been important in vehicle design. Typically, these have been assembled with several stampings, because no practical way existed to form tubes into complex shapes at required quality levels. Holes were more costly than in stampings, and some types... Read more...

Article

February 19, 2001
Handling metal stamping wastes: Protecting the environment - - and your business Possessing an in-depth knowledge of the latest metal stamping techniques, methods, tooling, and machinery is obviously a desirable trait for any professional in the metal manufacturing and fabricating industry. Unfortunately, the same value is not always placed on being knowledgeable in... Read more...

Article

February 19, 2001
Tips on Lean Manufacturing: How to purge weight from your manufacturing operation While some people have caught on to the need to get lean in their manufacturing operations, others still are waiting for the so-called fad of the Toyota Production System to go away. Surprise—it's here to stay. All manufacturing organizations have to reinvent themselves if they hope to... Read more...

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