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The growth of the servo-driven press
Traditional mechanical presses remain dominant in industry, but sales
of servo presses have gone into high gear in recent years. Controlling
the press stroke turns out to have many advantages, and the
technology’s adopters are reaping the benefits.
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Not your father’s fineblanking
Fineblankng now can produce not only flat parts, but also those with
3-D features, often to size and position tolerances of less than +/-
0.025 mm. It also offers extremely high part-to-part repeatability; the
first part and the millionth part are...
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Taiwan’s river of commerce
Taiwanese metal manufacturers have grown from small, family involved
entrepreneurial shops to world-class suppliers of parts and
technology.
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Repair, rebuild, or scrap the press?
From the perspective of a field service professional, the choice to repair, rebuild, or look for a new press isn't that hard of a decision. It's just a matter of clearly looking at the current shape of the press and what it will take to get it up...
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Developing a servo press knowledge base
Since Qualtek Manufacturing invested in its servo presses several years ago, it has been gradually building up a working knowledge base--specific stroke recipes, tooling tweaks, and other information--that has turned out to be valuable...
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Status update on hot stamping
Hot stamping has been around since the early 1970s, and it still holds as much promise today as it did then. Imparting strong steel characteristics on lighter-weight metals remains as relevant today as it did then. Today, however, the desire to...
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Your press is talking. Are you listening?
All machines have a story to tell. Are you listening? Just like a person wo has a cold, the voice of a machine changes when it is "sick." Most times, if you listen, the machine will tell you whatís wrong.
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What makes a stamper stand out?
Enjoying consistent growth is not something that many stamping operations can claim over the last three years, but Waukesha Metal Products is not a typical metal forming company. It is relying on servo press technology and its talented workforce...
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How press maintenance and safety intertwine
How press maintenance and safety intertwine.
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Choosing the best transfer solution
Servo transfer modules can help transform unused stamping press capacity into a viable metal forming resource. However, before a stamper can explore this newfound capability, it needs to determine just what type of transfer technology makes sense.
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Making sense of industrial sensors
Industrial sensors such as movement sensors, angle sensors, contact sensors, are considered common devices, but their use in transfer dies can help stamping companies like Ultra Tool & Manufacturing overcome application challenges.
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4 steps to press transfer efficiency
Part-holding tooling is a fraction of the total press cost, but it has the most effect on whether a stamping press is running at its peak potential. Taking proactive steps in tooling selection, including working with your supplier, using...
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The importance of the contact angle in deep drawing
In deep drawing, if the contact angle between drawing stages is too large, cracks can appear and swelling can occur, resulting in scoring, curving, and imbalanced flange-lip roundness. Keeping the contact angle between 15 and 45 degrees is key to...
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5 ways to empower die designers for better die results
By improving communication, supplying critical requirements upfront, creating die standards, using advanced software, and powering up equipment, customers can get better dies, faster.
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Tier stamper improves mechanical press productivity with transfer retrofit
A Midwestern manufacturer sought to improve
productivity on its nearly 10-year-old
Verson transfer press. Although the press was
in good condition, the original ETF transfer,
which had endured 28 million press hits, was
causing considerable...
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Press selection—sorting it out Part V
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Simulation empowers toolmaking creativity
Stamping simulation software augments an experienced toolmaker's creativity.
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Preventing catastrophic press failure
A load catching device has been developed that prevents catastrophic press crashes and allows operators to optimize the stroke for any size part.
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Retrofitting a mechanical press with servo technology
For the right applications, retrofitting a mechanical press with a servomotor can speed productivity and add flexibility.
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Mild steel to HSS: Not just a spec change - Part II
Stamping high-strength steel, rather than mild steel, requires a different press system design approach. Standard presses are not designed to withstand the forces associated with HSS. A link drive can reduce the impact when the upper die touches...
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Mild steel to HSS: Not just a spec change - Part I
Stamping high-strength steel, rather than mild steel, requires a different press system design approach. Standard presses are not designed to withstand the forces associated with HSS. A link drive can reduce the impact when the upper die touches...
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Hose partsmaker's lean journey leads to transfer press cell conversion
Lean manufacturing and an integrated transfer press cell conversion helped deep-draw stamper Truex, Pawtucket, R.I., to diversify its product mix and expand into new markets.
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How to make the most of a press move
In today's economy, machinery moves are on the rise. The success ofa machinery move project will be determined by the effectivemanagement of five key stages: planning, dismantling, servicing,5transportation, and installation. Do not overlook the...
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The economics of selecting a coil feed line
Factoring in the economics inherent in a small footprint—if a building expansion is required for a larger line, for example—a space-saving line may be the most economical option. Categories of space-saving coil feed lines, from the least...
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Hydraulic presses perform compression molding
Many companies in the aerospace, automotive, sporting goods, and wind energy industry segments are using composites and thermoplastics to augment and support metal stampings.
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Servo transfer automation enhances pressroom flexibility
A servo-driven transfer system can help to create a multipurpose press line that expands the number of parts traffic patterns. It also allows stampers to navigate heavy traffic with quick die changes between setups, short run times, and fully...
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Metal Spinning 101
Metal spinning gives shops a broad palette of options that can be customized for the job at hand.
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In-die joining transforms press into assembly system, Part II
In-die joining systems help stamping shops to expand their operations to include sub-assemblies and full assemblies without additional downstream equipment and processes, so they can carve out a bigger share of the production work.
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How do I calculate tonnage in progressive stamping?
Editor's Note: Below is the complete STAMPING Journal® Ask the Expert column, which was published in the Jan/Feb 2009 issue:
Q: How do I calculate press tonnage in progressive stamping?
A: (Dennis Cattell) You have to review the total...
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In-die joining transforms press into assembly system, Part I
In-die joining systems help stamping shops to expand their operations to include sub-assemblies and full assemblies without additional downstream equipment and processes, so they can carve out a bigger share of the production work.
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Hydraulic presses for hot stamping meet weight, safety mandates
Hot stamping of automotive structural safety components developed in response to mandates levied by the U.S. National Highway Traffic Safety Administration (NHTSA) 1 to improve vehicle crash integrity while also reducing vehicle weight to help...
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Next-generation large-tonnage presses rely on new software for virtual integration
Operating large flexible press systems without sacrificing speed and quality can be a complex undertaking. New software takes CATIA to the next level. Users can really learn how to "drive" their large presses optimally by virtually integrating...
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How to run presses faster without increasing scrap
The catch to operating at higher production speeds is that metalformers often see jumps in scrap rates and accelerated wear-and-tear on the press and tooling. New, and some tried-and-true, mechanical press technologies help metalformers strike a...
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Applying parallelism technology in hydraulic presses
Active leveling control (ALC) counteracts the negative effects of off-center loading; significant breakthrough shock common with high-strength steels (HSS); and reverse shock loading associated with nitrogen springs in dies.
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Driven to integrate
Changes come often in the steel industry--a business that sticks around long enough might eventually bear little resemblance to the version established at its inception. This is the case for Parkview Metal Products, Lake Zurich, Ill. The company...
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Retrofitting a prog-die press for transfer operations
Converting a current press to a transfer press requires altering the press, transfer dies, and the transfer system. Some presses are suitable for conversion, some are not. With a proper transfer retrofit, an old press can become a fully...
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Sensors clear the way for high-speed stamping
When you stamp 100 million automotive parts annually, as does Tennessee Stampings LLC, Portland, Tenn., you might accept die collisions as just part of the "traffic statistics." Not so. Before the dies ever hit the high-speed presses, they are...
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Press selection—sorting it out Part III
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Press selection—sorting it out - Part VI
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Press selection—sorting it out
Anchoring the March STAMPING Journal ® --Press Issue--this multi-source press selection article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well...
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Press selection-sorting it out Part VII
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Press selection—sorting it out - Part IV
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Press selection—sorting it out Part VIII
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Press selection—sorting it out Part IX
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Press selection—sorting it out Part I
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Press selection—sorting it out Part II
This multi-source article offers readers advice on the criteria to consider when buying a press. The article examines application suitability, drives, and controls as well as other considerations such as tonnage, frame construction, speed, and...
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Stamping 101: Anatomy of a Mechanical Press
Stamped components are made by forming, drawing, trimming, blanking, or piercing metal—in sheet or coil form—between two halves (upper and lower) of a press tool, called a die. The upper member (or members) are attached to slide (or...
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The science behind the servo press
Flexibility sums up where the servo-driven mechanical press stands in its evolution. Early adopters are seeing that flexibility and asking, "What if?" What if I could control ram motion throughout the stroke and dwell for a certain period at...
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8 Things you should know about your hydraulic press
What should you do to keep your hydraulic press running? Know your press--when it is working properly or when it needs attention. You can extend press life and maximize your investment by keeping your eyes and ears tuned and by performing 8...
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Dissecting defects
Dissecting Defects is a three-part series.
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