In order to overcome the problem of long product development times and too high costs of sequential product and process development, the companies will have to make a shift to project-driven concurrent product development. The procedure presented in the paper takes into account three strategic management methods: parallelness, standardisation and integration of product development processes. Also presented are the changes in organisational concept of the company, organisation of processes, work and IT. An analysis is presented on concurrent product development teams in a company.
COBISS.SI-ID: 11059483
The influence of quadrature phase shift on the measured displacement error was experimentally investigated using a two-detector polarizing homodyne laser interferometer with a quadrature detection system. Common nonlinearities were determined and effectively corrected by a robust data-processing algorithm. The measured phase-shift error is systematic, periodic and severely asymmetrical around the nominal displacement value. The results presented in this paper can also be used to assess and correct the detector errors of other displacement-measuring devices based on phase-quadrature detection.
COBISS.SI-ID: 11029275
We performed a single-shot, contactless measurement of ultrasonic waves on a laser-propelled rod with a homodyne quadrature laser interferometer (HQLI) during the entire duration of its motion. This is the first such experimental demonstration of the laser-induced motion of an elastic body where the most important mechanisms that reveal the nature of its motion are presented and explained. The applicability of the HQLI can also be extended to measure other optodynamic and high-frequency transient phenomena with a constant sensitivity and a resolution below 1 nm.
COBISS.SI-ID: 11204123
The paper presents results of an analysis of acoustic-emission (AE) signals obtained during laser cutting of steel plates, which are frequently used in the production of automotive body components. Correlation between laser cut quality and AE signals is revealed. The results confirm usefulness of the proposed method for evaluation of laser cut quality at different steel sheets. The method was used also in a manufacturing process involving laser cutting mud-guard out of the big deep-drawn part.
COBISS.SI-ID: 11274523
The properties of NiCrBSi coatings, produced by two-step proces of flame deposition and furnace post- treatment are analysed. The confirmation experiment showed that the Taguchi optimization method is suitable for optimization of flame-spraying parameters to improve adhesion strength. The microchemical analyses show the variations of chemical composition of matrix and eutectic phase and also in cromium and boron rich precipitates. The optimal temperature-time conditions that result in homogenous distribution of precipitates and low porosity, was determined.
COBISS.SI-ID: 10871579