Iveta Pandová

Evaluation of T-Vc Dependence for the most Commonly Used Cutting Tools

The main part of Standard ISO 3685 is T-vc dependence for various cutting materials. The Standard ISO 3685 contains main properties and characteristics for three most important cutting materials those are used in engineering practice. Durability is very important property of every cutting material. This property of cutting materials defined theirs life-time. The standard ISO 3685 prescribes instructions to creation of T-vc dependence for defined cutting materials. Paper describes process how to define T-vc dependence for the most commonly used, because were found deficiencies in valid standard ISO 3685.

Vibration and Experimental Comparison of Machining Process

Abrasive water jet technology is among the unconventional ways of machining. In todays modern and progressive era is often used for cutting and machining of various types of materials because of lower costs and environmental impact, as the cutting tool is water, in our case, with the addition of abrasives. Objective of the measurements was to evaluate the impact of vibration on the technological head in abrasive water jet technology in changing the selected technological parameters and the flow rate of technological head. In the given experiment, the used material - steel Hardox 500 with a thickness of 10 mm. The effort was to investigate the effects of changes in the speed rate of technological head (by speeds - 40, 200, 400 mm / min) on the size of the vibration acceleration amplitude and its frequency. Based on the measured values of vibration to the technological head create the database and from it is evaluated the data in selected softwares (LabVIEW, SignalExpress and Microsoft Excel). Findings and conclusions are formulated on the basis of graphical dependencies, envelopes frequency spectra and comparison chart of envelopes.

Zeolite as Nanomaterial for Water Treatment in a Production Exploitation

A new technologies and materials stand at front of thescientific interest. Their development leads to technological potential increasing at various fields of industry.Progressive new materials are based on the development of nanotechnologies and nanomaterials, which have a widerange of the applications in manufacturing, medicine and the environment protection. There sult of the hugeefforts in the development of nanostructured materials, the amount of new material sthat are the building blocks of nanoparticles with defineds tructures and properties. Progress in the use of nanotechnologies and nanomaterials has been noticed in the area of water protection, because they develop a modern, economically viable and environmentally more acceptable sewage processes and materials. At this sphere new zeolite products are developing with modified external surface.

Specification of Problems Solutions

Two successive parts produced by the same equipment are never the same dimensions, because the production process reflects the impact of the following influences.

Evaluation of the Capability of Machine

This chapter describes the organization, application, planning and evaluation capabilities of machines [59, 60]. The aim is, through the coefficients of capability c m and c mk, to determine the capability of a machine.

Evaluation of the Capability of the Production Processes

The capability of the production process can be evaluated [59, 60] on the following assumptions.

Capability According to the German Association of the Automobile Industry (VDA 6.1)

Since, in practice, we must meet various requirements from different customers to evaluate capabilities, here is another, alternative way (Obmascik in Metrologia chýb a neistot.MASM Žilina, 1998), which is in principle no different from others already described in this monograph.

Results and Benefits of the Implementation of Regulation and Further Procedures and Methodologies; Benefits for Science and for Practice

Regulation of production processes enables manufacturers to advance from a system of error detection (rejects) to a preventive system that eliminates the formation of errors at all.

Evaluation of the Capability of Gauges

In the previous Chaps. 6 and 7, we have described and implemented a sample determination of the capability of processes and machines. Since these parameters are measured through gauges, the gauges themselves must therefore also be in satisfactory condition.

Deployment of Regulation of the Production Processes in the Serial Production of a Specific Production Company

For the regulation of the production process, we choose those parameters that suitably characterize the operation of the manufacturing process, specifically those required by the customer [60].