Content tagged with "die-design"
Results: 26
Spanish
November 16, 2009
Diseñando dados amigables con la velocidad
En el competitivo ambiente de la actualidad, las compañías de estampado están buscando reducir costos a cualquier forma imaginable. Usualmente, el primer lugar adonde voltean los estampadores para reducir costos es la carga de mano de obra por parte, lo cual conduce a la inevitable lucha por... Read more...
Article
October 27, 2009
10 design laws for tool designers
Designing tools, like most tasks, goes more smoothly when you follow guidelines to achieve the desired result. Implementing these 10 design laws can help you produce the best tools for your stamping application. 1. Have no other goal except your personal best . The results are a... Read more...
Article
October 8, 2009
Design, build, troubleshoot
The critical phases of producing a capable stamping die are design, build, and troubleshoot (debug). Each of these phases is of equal importance and dependent on one another. If one of these phases is inadequate, determining the effectiveness of the other phases is extremely difficult.... Read more...
Article
September 24, 2009
Accelerating Diemaking
Rather than die cutting or EDM-working components for a custom die, diemakers just use standardized components and machine a template to specific part prints. Photo courtesy of S.B. Whistler & Sons Inc., Akron, N.Y. Pressure to shorten the time from order to manufacture has never been... Read more...
Article
July 9, 2009
Designing speed-friendly dies
Each of the physical speed-limiting factors is dictated by the configuration, or design, of the part. You can identify product design compromises that make the part more speed-friendly.
In today's competitive environment, stamping companies are looking at every imaginable way to reduce... Read more...
Article
November 11, 2008
3-D die design for a 3-D world
Who isn't feeling price pressures today? Who doesn't need to build dies faster than they used to?
Manufacturing has changed dramatically in many ways to meet price and time pressures. It's interesting to look at how far most companies have advanced in the past 20 years in terms of the... Read more...
Article
August 26, 2008
AHSS stamping simulation: All things being (not) equal
Figure 1
While AHSS does present some major hurdles for stamping, simulation software has no insurmountable obstacles.
When people hear advanced high-strength steel, they think about entering new territory; about reconsidering traditional ways of designing a stamping operation; and... Read more...
Article
July 15, 2008
Forming AHSS: Playing by new rules
The shop floor at MBtech Autodie in Grand Rapids, Mich., has more than 30 presses for die tryout. In recent years the company has made great strides building dies for AHSS. Mention a certain material is predicted to overtake mild steel as the auto sector's most popular material in 10 years,... Read more...
Article
June 1, 2008
Reading progressive die strips — Part II
Editor's Note: This is the second part of a two-part article about reading progressive-die strips. Part I covers the causes of pilot hole distortion and mismatched cuts.
Figure 1
Cosmetic part or not, hard marks can tell a great deal about the die's timing, as well as the... Read more...
Article
May 13, 2008
Custom or standard?
Contrary to a popular misconception, the output of durable goods in the U.S. has been on an upward trend for decades. This growth is interrupted by intermittent, short-term slowdowns, of course, but the fact is that the U.S. continues to be a productive nation, and its output continues to... Read more...
Article
May 1, 2008
Reading progressive die strips — Part I
Editor's Note: This is Part I of a two-part series discussing causes of distorted pilot holes and mismatched cuts. Part II, which discusses hard marks, poor die design, and coil-related problems, will appear in the June issue.
Figure 1
Strips can use stretch carriers, or an extra... Read more...
Article
April 15, 2008
Where sensors make sense
Sensor-driven errorproofing can help stamping shops prevent the production of bad parts, die crashes, and downtime. Metal formers today find that increasingly customers are no longer satisfied with just a low percentage of defective parts, measured in parts per thousand. Today customers... Read more...
Spanish
November 6, 2007
Cambie el orden de formado
Configure le prensa de forma que usted trabaje con su flujo natural. Foto cortesía de Wila USA, Columbia, Md.
Con qué frecuencia estima usted que está desechando partes debido a que se formaron al revés o se doblaron con el grupo de herramientas inadecuado? Usted podría estar... Read more...
Article
June 12, 2007
The tao of forming order
The Emperor's guard was patrolling the river near the base of the Great Falls when the scout came running back down the bank. He was short of breath, too excited to speak.
The Captain of the Guard's attention was drawn to the excitement. "Report the cause of this commotion, soldier!"... Read more...
Article
February 13, 2007
Protecting metal stamping dies
In most industries, improving process efficiency is an imperative part of product manufacturing. It is becoming increasingly important in metal stamping facilities throughout the world as competition requires that products to be made at a much faster rate and at a greater level of conformity.... Read more...
Article
January 9, 2007
Draw forming
Editor's Note: This is the sixth in a series of seven articles that identify and define the need for a new processing theory for the net shape processes (of which draw forming is one) and that explain the general content and configuration that new theory must have. The first five articles in... Read more...
Article
December 12, 2006
Avoiding common bending problems with common sense
As we strive for simplicity in solving manufacturing problems, we are captivated and enthralled with the flash and glitter of the newest gadgets. Whether by clever marketing or our innate desire to have the latest and greatest newfangled technological gadgets, the outcome is the same. We... Read more...
Article
November 7, 2006
Designing dies 2-D or 3-D?
A while ago a loyal reader of STAMPING Journal® and the Die Science column e-mailed me and asked if I would discuss the topic of die design. Specifically, he wanted me to address 2-D versus 3-D design methods. I don't know for sure, but my guess is that he was pondering the thought of... Read more...
Article
October 10, 2006
Overcoming deformity by design
One of the goals of any die design should be to create a tool that minimizes the need for highly skilled labor to fabricate and build it. Most if not all tooling should be designed for manufacture on precision CNC or wire electrical discharge machining equipment. One of the goals of any... Read more...
Article
September 12, 2006
Draw forming, Part IV
Editor's Note: This is the fourth in a series of seven articles that identify and define the need for a new theory on the net shape processes (of which draw forming is one) and that explain the general content and configuration that new theory must have. The first three articles in this... Read more...
Article
August 8, 2006
Unique forming short cuts
Figure 1 The use of a 1-to-1 rocker ratio mounted beneath the forming section allows the metal to be formed both up and down, thereby twisting it. Die designers and process engineers often are faced with the challenge of making a part feature that is unique and possibly difficult to... Read more...
Article
March 7, 2006
Taking the danger out of bottom bending
Liability! It's more than just a word. It is the single reason that manufacturers of press brakes and press brake tooling maintain that you cannot bottom bend with their tooling or machines.
It is all too easy to ruin a tool or upset a ram if the process is done incorrectly. Ram upset occurs... Read more...
Article
December 13, 2005
In the loop on closed-loop roll forming?
In roll forming, nonstop punching and shear systems typically deliver the highest output. Although these systems traditionally have employed open-loop control methods, closed-loop (also called servo-based) systems can yield high line speeds while helping to decrease downtime and reduce... Read more...
Article
October 11, 2005
Collaboration in the stamping industry
This scenario is familiar to many metal stamping manufacturers: The customer's new product, designed to be an entry-level model, is struggling even before it enters the market. Tooling is completed, but costs have spiraled out of control, and the projected profit margins look... Read more...
Article
October 11, 2001
Die design for double bending
Figure 1 Object I'm often asked if double bends can be made easily in a single wipe bending operation. The answer is yes; but keep in mind, the results are slightly different than if the bends are made in a multistage bending operation. When bending in a single operation, you need to pay... Read more...
Article
September 17, 2001
Designing large die sections with reparability in mind
Figure 1: Wire EDM can be used to produce a blank-through die opening such as the one illustrated here, except for the screw holes. Each of the four die sections is designed with two dowels to provide locational accuracy. Conventional die-sinking electrical discharge machining (EDM)... Read more...
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