Sheet Metal Testing Machine - Earing Test Machine - Model 106
Sheet Metal Testing Machine - Earing Test Machine - Model 106
Sheet and Strip Metal Testing Machine in special design, with electro-hydraulic drive, for the manufacture of standard cups to establish earing - Model 106.
To operate the electro-hydraulic sheet and strip metal testing machine is very simple. The sheet metal strip which has to be at least 70 mm wide, is inserted into the 140 mm wide machine aperture. In a single operation the blank is stamped out and the standard cup is drawn.
The blankholder pressure necessary to prevent the formation of folds during deep drawing of cups is provided hydraulically, and can be read off on a pressure gauge. This pressure is infinitely adjustable in the range from 0 to 18 kN by means of a regulating valve and remains constant until just before the end of the draw. It then falls automatically to zero to prevent squashing of the ears, which would give a misleading result. By special measures in the design, allowing the blankholder piston to ”float”, a very even distribution of blankholder force is obtained over the area of the blank. This enables very thin materials to be drawn.
Exchanging the drawing die, which serves simultaneously as blanking punch, as necessary for different sheet thicknesses, is a simple operation assisted by a bayonet lock arrangement.
The tendency towards formation of longer ears on drawn sheet metal cups is, in most cases, undesirable, since it results in the need for more work and increased loss of material in the manufacture of the drawn workpieces.
The application of Earing Test Machine, Model 106 results in improved control in the process department and provides quality assurance in the sheet metal manufacturing process.
The ratio of blank diameter to punch diameter of 64:33 that is employed on this testing machine is also used for other drawing tests and thus allows direct comparison. The Earing Test Machine, Model 106, gives rapid, accurate test results, with good repeatibility.
Application
The operation of Model 106 is comparable to a blanking and drawing press. It is used to make quickly and - where enquired - in batches standard cups using any type of steel or non-ferrous metal, especially in accordance with DIN 50 155, UNI 6124-67 and MSZ 5731- 68. On these standard cups the anisotropy, i.e. the preferred crystal alignment in the various directions of the plane of the sheet metal can be established by examining the position, number and form of the ears.
The Ear Measuring Instrument, Model 126, is employed to obtain a numerical measurement for the average ear height in millimeters and percent, and the depth of the cup.
With the available maximum blanking and drawing force of 77 kN, Model 106 can draw sheet metal 0.1 to 1.0 mm thick based on a tensile strength of 400 N/mm² or 0.1 to 2.8 mm thick based on a tensile strength of 100 N/mm².
The required width of material is approx. 70 to 140 mm. To test narrower strips (minimum 25 mm width) special blanking and drawing tools can be supplied.
The Key to Control Elements
- Control lever
- Stripper ring
- Blanking rings
- Test cylinder
- Cup ejector
- Plug screw
- Pilot valve
- Blankholder
- Strip entry
- Control panel
- Main switch
- Blankholder regulator
- Drawer
Accessories
Ear Measuring Instrument, Model 106 for rapid measurement of ears formed on cylindrical cups of diameters from 15 to 50 mm. The heights of the ears and the valleys are measured as a percentage and in millimeters by simple placing of the cup on the location of the instrument. The measuring result is displayed on a digital device when a button is operated.
| Technical Specifications for Sheet Metal Testing Machine - Earing Test - Model 106 | |
|---|---|
| Dimensions | Width1715 mm Height500 mm Depth 550 mm |
| Net weight | approx. 235 kg |
| Drawing force, max. | max. 77 kN |
| Drawing speed | max. 750 mm/min |
| Punch stroke, max | max. approx. 35 mm |
| Blanking force | max. 77 kN |
| Engine performance | 1.5 kW, 1500 min^-1 |
| Main supply | 220 or 380 V, 3~, 50 Hz |
| Sheet holder pressure | 0 - 18 kN / 25 bar |
| Ordering Information for Sheet Metal Testing Machine - Earing Test - Model 106 | |
|---|---|
| Part No. | Description |
| 0022.01.31 | Sheet Metal Testing Machine, Model 106 The testing machine generally as per Technical Description 106/E, complete, including setting up of one of the following blanking and drawing tools that have to be ordered in addition to the testing machine. Power supply: 400 V, 3-phase, 50 cycles, 1.5 kW. The quantity required of hydraulic oil (40 l), type HLP 32 in accordance with DIN 51 524-P2, must be provided by the user. Weight 245.00 kg |
Test Tools to be used with Model 106
Standard Blanking and Drawing Tool, consisting of:
Blanking die ring for blank diameter 64 mm and drawing punch 33 mm dia. as well as combined blanking and drawing die.
Blanking and Drawing Tool for Ear Forming Tendency Assessment on non-Ferrous Metals acc. to DIN 50 155, consisting of:
Blanking die ring for blank diameter 60 mm and drawing punch 33 mm dia. as well as combined blanking and drawing die.
For further information or to place an order for the Sheet Metal Testing Machine - Earing Test Machine - Model 106, please CLICK HERE, call us Toll-Free at: 1.877.884.TEST, or click on the "HOW TO ORDER" Button