Model 102

Description

Sheet Metal Testing Machine, Model 102-60 (with max. drawing force of 60 kN) with electro-hydraulic drive, automatic switch off at specimen failure and automatic menu navigation via touch panel.

Application

This Sheet Metal Testing Machine is intended for testing materials in the medium thickness range (0.1 to approx. 3.0 mm). It provides rapid a reliable quality monitoring for sheet metal producers and users.

There are important reasons for using the Sheet Metal Testing Machine, Model 102, for quality assurance:

• 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 preparation 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 work piece to optimise the ratio of price to suitability for the manufacturing process.

Quantitative measurement of sheet quality by means of the ERICHSEN Cupping Test provides a basis of communication between sheet metal producers and users. The form of the crack and the surface roughness (= grain size) also provide information on the quality of the sheet metal and is suitability for drawing, giving valuable information especially to the sheet metal producer. The good functional layout of Model 102 makes this machine particularly user friendly. All relevant test tools can be set up in the test cylinder quickly and without difficulty. The sturdy design and the hydraulic system employed ensure that minimum wear is experienced so that accurate test results are assured over a long period of time.

Design

The machine consists of a sturdy sheet metal housing into which the test aggregate (test cylinder with work piston, sheet holder piston) and the test tools as well as the hydraulic system are integrated. The emergency-stop switch is 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.

When carrying out the ERICHSEN Cupping Test, the sheet metal specimen in the form of strip is inserted into the test cylinder and centralised by locating diagonally. The sheet holder force of e.g. 10 kN in accordance with DIN EN ISO 20482 is adjusted using a special regulating valve, and the actual cupping process is initiated by selecting the from the test specification required drawing speed on the speed regulator.

Since the testing machine is equipped with the function "automatic stop at specimen failure" the forward speed is automatically stopped when the crack occurs, so that in any case an objective test result is achieved. The ERICHSEN cupping value is displayed with an accuracy of 0.01 mm on the touch panel.

Scope of delivery

• Sheet Metal Testing Machine, Model 102-60 (with max. drawing force of 60 kN)
• Test Tool No. 27
• One Filling of Hydraulic Oil
• Operating instructions