Content tagged with "progressive-dies"
Results: 14
Article
January 14, 2010
Design for manufacturability
Figure 1
This part, among many others produced by Bachman Machine Co., came about through significant customer collaboration. Photo courtesy of Bachman Machine Co.
It's the little things that snowball into so much trouble. It could be a bend angle, hole location, or tolerance... Read more...
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 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
August 1, 2009
'Bad' steel — the ultimate scapegoat
What the heck is "bad" steel? It seems like every time there is a problem making a good part, the steel is blamed. Cracking problems? It's bad steel. Wrinkling problems? It's bad steel. Springback problems? It's bad steel. Cold and rainy outside? It's bad steel. You get the idea.
As a tool-... 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
July 2, 2009
The pressure is on
The 400-ton pressure testing setup shows the die components and bumper blocks. The traditional method of measuring pressure distribution in stamping operations—the die spotting blue technique—indicates the pressure points but not how much pressure. This makes it difficult to... 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
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
Retrofitting a prog-die press for transfer operations
Click image to view larger. The press window has a direct relationship to the type of transfer system you select and how it is mounted to the press. Front- and rear-mount systems mount on any style of press, including one with no window. Does this sound familiar? You purchased a new press 20... Read more...
Article
January 15, 2008
Controlling slug pulling with hole lapping
Ever since the invention of the die and punch, the die industry has been plagued by punched slugs pulling up as the punch leaves the die. These slugs embed themselves into the hole cavity that was just made, impeding the forward advancement of the strip. High speed and thin materials can... 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
November 8, 2005
Die maintenance. Die repair.
Figure 1 When you grind tool steel sections such as D2, M4, and powdered metals, you actually are grinding small carbide pools. Photos courtesy of Bohler Uddeholm. If you find your daily activities include tasks such as fixing broken pads, welding a damaged die section after a... Read more...
Article
August 9, 2005
Get the most out of your press:
All presses go up and down, but that's where the similarity among them ends.
When it's time to review your pressroom and research a new press, consider your manufacturing needs, the parts the press will run, all ancillary equipment, raw materials, and the dies that will be... Read more...
Article
August 9, 2005
Die Basics 101: Part III
Figure 1
Tandem Line Presses
Photo courtesy of APT. Among the many factors to consider when choosing a production method are the production speeds necessary to produce the required quantity within a given time frame; the material consumption needed for each part; the... Read more...
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