During this process, formed parts are pressed against tools at high temperature, which ultimately yields to tool damage. Tool damage is especially detrimental since it not only affects the quality of the parts but also causes higher material consumption and reduces maintenance intervals. The extent of tool damage is determined by the process parameters but their influence is not yet clearly understood. The aim of this work is to investigate the influence of input process parameters on tool wear and maximum drawing force. To this end, a novel test rig is designed in order to reproduce typical press hardening conditions under well-controlled laboratory conditions.

Leeb Hardness Tester NOVOTEST T-D2 is designed for rapid non-destructive hardness testing of various objects. ASTM and ISO standard and custom chemical, mechanical, thermal, corrosion tests, etc. for all materials metals, ceramic or polymers. The probe is held firmly with its axis in a perpendicular position relative to the test piece surface. Then, the instruments indicate the end of the measurement by an acoustic signal and display the value of hardness.

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Commonly used for HAZ, weld hardness testing of pipes at oil refineries, power plants, oil rig, etc. Leeb probe is used for measuring the hardness of non-ferrous metals, cast iron, materials with coarse-grained structure, solid products, etc. It can be employed from simple manual measurements to fully automated production testing. Additional measuring sensors can be connected to the ultrasonic meter, which vary in their test force, which is applied to measure the hardness. The different sensors measure the hardness of the objects depending on the roughness of their surface. For example, the standard sensor with 20 N measures surfaces with a roughness of less than 5 µm.

From solvation energy calculations, it can be seen that the BNNTs/amino acid complex dissolution in water is spontaneous. The adsorption energies and quantum molecular descriptors changed in the presence of external EF. Therefore, the study of BNNTs/amino acid complex under influence of external electric field is very important in proposing or designing new drug delivery systems in the presence of external EF. Results indicate that Glu, Lys, Gly and Ser amino acids can be adsorbed considerably on the BNNTs in the existence of external electric field. Single and coupled effects of sterilization and ageing of plasma polymer multilayer coating on polypropylene mesh are studied.

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Best Application: Ultrasonic Portable Hardness Tester

AJR AUH-II ultrasonic hardness tester can make measurement on any shape metal with any size like flat, round, thin or large surfaces. Accurate measurements of steel, cast steel, alloy steel, aluminum, brass, bronze and copper are easily attained with this compact instrument. AJR AUH-II portable ultrasonic hardness tester is a intelligent hardness measuring instrument. Compare with vision measurement systems manufacturers , AUH-II portable ultrasonic hardness tester adopt Ultrasonic Contact Impedance technology and Automatic Stabilization and Compensation technology.

Portable Hardness Testers

The UCI hardness test can be used to take hardness measurements on positions difficult to access, such as tooth flanks or roots of gears. The ASTM A1038 hardness test is a superficial determination that is done only for measuring the hardness condition of the surface contacted. Non-destructive ultrasonic hardness tester, based on the principle of ultrasonic contact impedance method , can quickly and without damage to detect the hardness … HRZ-6 intelligent nondestructive ultrasonic hardness tester is a measuring rod by means of ultrasonic sensors to measure the hardness of a high-tech, … These units can test metals as thin as 1mm and at a hardness value as low as 20HRC . The ultrasonic contact impedance probe is purposed to be used for hardness measuring in the case of the testing area minimal thickness , objects of complex surface shape, and for measuring surface hardened layers hardness.