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Forming Limit Curve FLC

Experiment to measure the materials formability/plasticity FLC by deep-drawing of several geometries according to Nakazima test. The strains are measured continuously using the Digital imaging system ARAMIS.

Purpose

Using a measuring method with high efficiency and quality provides the material's formability. Test how the sheet deforms/strains in different directions before a crack appears.

Method

The stamping tests are conducted using a hydraulic press with a capacity of 1200 tons with a specially manufactured tool för FLC measurements. Measurements are done with seven geometries according to Nakazima geometries to assure a good forming limit curve. The measurements are conducted using ARAMIS which is an optical 3D deformation measuring system that analyzes, calculates, and documents strains. ARAMIS measures displacements of a stochastic pattern on the surface which is sprayed on with an aerosol, the measurement window is 0.01% up to several 100%. ARAMIS measures the deformation using two digital cameras continuously during the forming tests, providing a continuous strain map of the sample until crack. 

Deliveries

Results delivered according to the agreements.

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Service

Forming limit curve according to Nakazima test

Standards

Test is based on the standard ISO/DIS 12004-2.

Price

Price on tender

Delivery time

According to agreements.

Preparations

The rolling direction should be clearly marked on the test material.

Thomas Skåre

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Thomas Skåre

Forskare

+46 10 228 48 22

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Martin Ohlsson

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Martin Ohlsson

Forskare

+46 10 228 48 21

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