Ascamm Foundation will offer a service of actual conditions of machine tool calibration
In the informative triptych of the Fundació metrology service ASCAMM is a quote from Galileo Galilei ("Measures everything that can be measured and what not are") ("you can, make it measurable" 1601), which comes to define the spirit that encouraged the metrology. However, the objective practical of the Metrology applied to production needs industrial it would seem more to another quote, from the popular wisdom, which is also located in this triptych but below: "Before cutting, measure twice". A popular way of saying that a bad policy "Metrology" It can cost money and prestige.
The service of metrology of Ascamm was born makes twelve years in order to meet the needs of the moldistas and millwrights in Catalonia. Has the person in charge This Department, Traian Onaciu, that the service is It was originally in a little appropriate environment the metrological requirements and employing only one machine. This situation changed dramatically in 1997, year in that the Ascamm Foundation decididió betting service Metrology and it placed him in your current environment: a zone located on the ground floor of the building which has Ascamm in the Parc Tecnològic of Cerdanyola del Vallès (Barcelona).
Is is a place with few mechanical vibrations, no light direct and independent air conditioning. The center of Ascamm, accredited according to the rules of ISO 9001 by LGAI (Laboratori General d'Assaig i Investigacions), dealt essentially with the dimensional measurement, Although also calibrates other quantities such as mass, the hardness or the temperature. " Have taken important steps in the advanced inspection" forms by comparison with the CAD model", explains Traian" Onaciu. It's a service that is undergoing a growing demand for the hand of the automotive sector and others dominated complex forms. It also represents, together with non-contact measurement, a sample of the trends of the future metrology. In this case specific, it's the integration of measurement and the CAD. However, the jewel in the Crown is a computer application, developed for some few months, for the evaluation of the roundness to use a machine to measure by coordinates (MCC). This application came out of a job as a client of this Department, Tramec signature, He was making to Valeo. The application also been applied successfully elsewhere work aimed at preventing gasket failure in medical devices.
Calibration of machine tools
For the next year, the Department Ascamm metrological plans to start offering a new be vice of evaluation of machine tools. It is of What Ascamm is known as "geometric verification" on machines tool with the proviso that would be carried out under normal conditions production. As recognized by the same Traian Onaciu, on the market there are appropriate technologies that perform calibration of machine tools, as the laser systems able to detect failures of linearity on the machines.
However be trafficking in processes that are carried out outside of the normal operation of the machine. The Ascamm system want to launch is in give the user a model in CAD so it mecanice in its Workshop. The result would be analyzed by Ascamm.
From the results, the user may classify their machines and, if you test each CIER to time, this method would allow possess a track record of their teams. To perform the test it would employ a model of complex surface based on type cosine curves and to handle a certain volume inside of the work surface of the machine. According to Traian Onaciu, the service has already generated a certain excitement, ("la") people are has mostra do excited ")."
The jewel in the Crown is an application computer science, developed makes few months, for the evaluation of the roundness that uses one measuring machine for coordinates (MMC)
Equipment of the Centre
Currently, the Metrology Department, Ascamm uses the following equipment:
- Coordinate measuring machines (MMC)
- Brown & Sharpe Scirocco (2000 x 1300 x 1000)
- Brown & Sharpe Mistral (710 x 660 x 460)
- Digitizing Renishaw Cyclone (550 x 450 x 4350)
- Projector profiling Mitutoyo (200 x 100) 10 x, 20 x, 50 x
- Universal Bank of calibration MAHR 828 PC U = 0, 3 + L/1000 [µm]
- Calibration of watches comparators unit MAHR 865 U = 0, 2 + L/50 [µm]
- Portable roughness Hommel Tester T500 class 1 according to DIN4777
- Durometer Centaur (Rockwell, Vickers, Brinell)
