Model 134

Description

The Sheet Metal Testing Machine, Model 134, with electro-hydraulic drive, max. drawing force 120 kN and adjustment for pre-setting the blank holder pressure max. 45 kN, blanking head (max. blanking force of 200 kN), automatic test sequence and facility for automatic stop at specimen failure. The machine is operated via a resistive touch panel(automatic menu navigation).

Purpose and Application

This Sheet Metal Testing Machine is not only ideal for the effortless, quick and accurately all important and known-deep drawing tests for ferrous and non-ferrous metals, it is also designed for a large number of additional technological investigations. In addition, the Olsen Test as used in the USA can be performed, if appropriate tools are set up.

There are important reasons for using Sheet Metal Testing Machine, Model 134, for quality assurance and research:

• Lowering of manufacturing costs by making spot checks on the drawing quality of cold rolled sheet during production or in the process department.
• Sorting out of material of lower quality arriving at the Goods Inwards Department. Without special test preparations it is immediately possible to establish if the material supplied has the prescribed drawing quality.
• Determining the most appropriate sheet thickness for a particular drawn workpiece to optimise the ratio of price to suitability for the manufacturing process.
  
  

Design

The machine consists of a sturdy steel plate housing into which the test head including test cylinder with three working pistons for blanking/sheet holding, drawing and ejecting, is fitted. The emergency-stop switches are located on the control panel next to the touch panel, which starts the automatic menu navigation. The two control valves for the drawing and sheet holding force adjustment are user-friendly mounted in front of the housing.

Within the machine housing following parts are accommodated: Drive motor, hydraulic pump, oil tank, the necessary electro-hydraulic control gear and associate internal installation as well as electronic measuring transducers for exact detection of the test parameters.

Further technical advantages

• Cylinder head with bayonet lock permitting direct access to drawing dies, blanking rings, blank holders etc. and quick and convenient changing of the drawing and blanking tools
• Infinitely variable drawing speed once set it remains constant throughout the drawing movement, independent of any change of load
• Cardanic drawing die retention ensures the consistent, parallel clamping of the specimen, independent of variations in thickness.
• Crack-Detector ensures the facility for automatic stop at specimen failure by ERICHSEN Cupping Test.
  
  

Scope of delivery

• Sheet Metal Testing Machine, Model 134
• Test Tool No. 27
• Operating instructions