Increase productivity the choice is yours

Japan-Tokyo Exhibition

Traditional Transfer Press

In the Metal Forming Design Guidelines, it is stated that for increased productivity, two or more basic metal forming operations can be combined in dedicated tooling. The transfer tool IS the KING of productivity tools.

When thinking about transfer stamping you have more than one option to reach your desired productivity. You can choose the traditional large transfer press or a tandem operation with a press to press transfer system.

At the 2015 Tokyo exhibition SEYI demonstrated the latter. Two SD1-88 direct drive servo presses were integrated with an Orri transfer robot and destacker.

Tandem Option Demonstrated at Tokyo

Using a method called "simulating control" SEYI used Crank Motion (from beginning to 3:00 on video below) and link and hold motion (Demonstrated on left side press after 3:00 in video) to show how you can use a tandem press system to match or even surpass the productivity of a traditional press system by coordinating speeds and settings of each device.

Talk to SEYI today and we can assist you in making the right choice for your facility and project.

SEYI-Europe Demonstrates the Versatility of the SD2-200 at Blechexpo Stuttgart

SEYI never stops working to fit the needs of the ever changing metal forming industry. Our goal is to assist you in your constant endeavor for increased efficiency and growth.

There may not be a machine that embodies SEYI’s drive to be the only press manufacturer you need more than the servo press.

With the servo press you have the control that provides you the desired efficiency and the flexibility to welcome the new jobs that will lead to the continued growth of your business.

Recently at Blechexpo in Stuttgart, Germany Michael Juhl of SEYI-Europe spent some time exhibiting some of the features that make the servo a great addition to any plant as they move into a new age of metal forming.

Watch the videos below as Michael demonstrates the SD2-200 in a variety of scenarios that professionals in our industry face daily for example controlling spring back, deep drawing, and fine blanking.

Thank you for taking the time to view these videos. If you have any questions please contact us today.

                                         

Prolonged Die Life using SEYI Servo Press Technology

Lately, we're seeing many companies trying to further justify a servo press investment through production cost reduction, namely increasing die life/reducing wear.

Below is a comparison between a conventional press and servo press. 

On the left side; the parts are rails of stainless steel with a production run of 100,000 pieces. With the conventional press, the speed is only 20 spm but in the servo the average is 50 SPM with 40 times the die life and better tolerance because you can slow down the stroke speed.  That's money saved in down time and labor for maintaining dies! The type of profile used for this example is a combination of pendulum mode with a link motion profile.

The right side are handles made of hi-tensile steel.  This is just blanking so the speed is the same. But there is a difference in die life and tolerances, again because you can slow down the stroke speed at bottom dead center.  The prfile that best represents this is the Link Motion profile, which comes standard on every SEYI servo press as part of the 7 preset profiles, plus free motion.

And, of course, the tolerances are better because when you’re in the working area, you can slow down the speed and that will increase the die life.  

Lesson learned; you can run tighter tolerances on the servo because you can run with slower speeds at BDC, whereas with a conventional press you have to open the tolerances because there is more friction, more heat. You’ll end up breaking punches.

Let us know if you have any questions

The Manufacturing Facilities of Seyi

From Our Factory To Your Floor 

In addition to a sales and service team that spans the globe Seyi has two manufacturing facilities one in Taoyuan, Taiwan and in Kunshan, China which is an hour north of Shanghai. These facilities combined have over three hundred and seventy one thousand square feet of production space and employ over seven hundred people.

The Taoyuan plant just outside of Taipei is the home base of Seyi. The Taiwan plant is the where all production for global markets take place. At this point presses as big as one thousand six hundred ton have been built here for a variety of applications and markets across the globe.

The Kunshan facility in China has two production areas measuring over two hundred and thirty six thousand square feet. Production at the China facility is only for the China domestic market.

These facilities have an experienced work force. More than thirty percent of our workers have five or more years of experience. Both facilities use high end state of the art machinery for fabrication. Seyi has invested 3.4 million dollars in our own equipment while our competitors outsource critical machining.

To learn more about Seyi machinery and our presses visit our YouTube page to see our machines in action. 

Forming High Strength Steel in Automotive Applications

Repetitive Stamp-and-Hold Servo Press Slide Movement Eliminates Spring Back of an automotive AHTSS Beam.

The example to the right is an automotive beam made of Advanced High Tensile Strength Steel (AHTSS).
In the left-side picture, the beam has been stamped in one stroke using a traditional mechanical press with an eccentric shaft, crankshaft, or eccentric gear drive.  You will see that the sides of the beam have noticeably flared-out and not held shape.  This is due to the material's high tensile strength.  In order to control the material and eliminate the springback using a traditional mechanical press, you would need to use two presses and a transfer; one to do the first stroke and the other to restrike to take the spring back out of it. You could also restrike the part with the same press.  Obviously, these two choices involve more resources at slower production rates.

In the same example, the picture on the right side is the same part that has been formed using one hit on a servo press.  With the ability to program the press's slide position, speed, and dwell, the resulting slide motion profile (to the left) allows you to bring the slide down at a greater speed, then slow down as it reaches BDC.  By slowing the slide down, there is better stress relief of the material, allowing it to steadily flow into shape. The slide then comes up above BDC to allow the material to springback slightly before the slide comes back down to form the final shape.  You can see an example of this by watching the following video:

For more information on this example and other servo press advantages, contact Randy Kish at randy@seyiamerica.com or call 1-931-455-4876.

Servo Applications: The Ability to Heat Material In-Die

Like a digital camera, a mac book, where you can heat the material, typically only able to be done in a hydraulic press.  You see the curve a to b you load on the material face down.  B to c you’re holding, without pressure, so to heat the material of magnesium to specific temperature to then down and then go back.  D and E is where the metal is being pushed to create the sides of the chassis.  The dies is actually heating.  This could be magnesium, titanium, other alloys that require heating or warm forming.  8mm and 0 mm is height above bottom dead center.