• Refine Query
  • Source
  • Publication year
  • to
  • Language
  • 146
  • 98
  • 96
  • 69
  • 17
  • 16
  • 6
  • 5
  • 4
  • 4
  • 4
  • 3
  • 2
  • 2
  • 2
  • Tagged with
  • 522
  • 86
  • 82
  • 79
  • 69
  • 62
  • 62
  • 56
  • 47
  • 46
  • 45
  • 45
  • 44
  • 40
  • 39
  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
231

Návrh technologie součásti alternátoru / Solution technology of part from three-phase alternator

Pokladník, Robert January 2011 (has links)
This Diploma thesis deals with design technology of alternator claw pole. The technology is designed to achieve low production costs. The purpose is to prevent the transfer of manufacturing contract to countries with cheap manpower and low production costs. Technology design is done by selecting billets to the processing and economic evaluation. The dominant technology is a cutting operation that is performed on numerically controlled machines.
232

Technologie výroby pouzdra zpožďovače / Technology of production case of delay

Janošek, Martin January 2012 (has links)
In this master´s thesis is after first part, which is study explosions and detonators work, solutions to technology of production case of delay. First is anatomize technology of construction where is solve the form of stock and material from which the case of delay should be produce. Next capitol is about the ways of production of this part. The output of the thesis is complete production processes at all levels of detonators and selection of machine according to technical and economical aspects.
233

Technologie opracování středicích nákružků a patek elektromotoru v systému řízení výroby / Machining technology of electromotor spigots and base in the production control system

Tollrian, Zdeněk January 2012 (has links)
The current processing of electric motor feet and centering collars has been focusing on two main production methods. The production transfer from Germany allowed the introduction of a new enhanced technology. Cutting conditions values, cutting process operating forces , tool life criteria for a maximum productivity and a minimum costs were calculated. Control measurements of the required collar and stator pack concentricity provided the necessary feedback.
234

Návrh a výroba příruby náboje zadního kola formule pomocí technologie CAD/CAM a dílenského CNC programování / Design and machining of the flange hub rear wheel of the formula by using CAD/CAM technology and CNC workshop programming

Lučaník, Aleš January 2013 (has links)
This master's thesis deals with design and machining of the flange hub rear wheel of the formula by using CAD/CAM technology and CNC workshop programming. The introductory part provides theoretical description and characteristic of turning and milling technology. Further work describes aluminium alloys with focus on material which was used as a blank for machined workpiece. The practical part deals with design of flange in CAD software Autodesk Inventor, design of turning strategies in system ShopTurn and design of milling strategies in software PowerMILL. The final part of this thesis specifies realization of manufacturing on CNC lathe and CNC machining center in company BOSCH DIESEL s.r.o. in Jihlava. Last chapter is focused on techno-economic aspects of manufacturing.
235

Volba a optimalizace řezných podmínek pro progresivní výrobní technologie / Data selection and optimisation of cutting conditions for progressive production technologies

Caha, Tomáš January 2015 (has links)
This thesis contents theoretical description of methods for choosing and optimization of cutting conditions for progressive machining technologies. Especially it is concerned on CNC machining. The aim of experimental part of work is to set cutting conditions and simultaneously to achieve the most economical solution under current production conditions of the company. The product must also comply with required quality, roughness of the surface and geometrical precision.
236

Návrh na zefektivnění procesu obrábění válcové součásti pro ropné vrty / Efficiency Improvement Proposal of Machining Process of Cylinder Component for Oil Wells

Koudela, Michal January 2015 (has links)
This diploma thesis is concerned with a proposal for increasing the efficiency of machining when manufacturing an inner sleeve at the company Sanborn a.s. In the diploma thesis, the technology used for machining itself is first briefly described, followed by a description of the original production technology including a description of machine and hand tools used and cutting conditions. The next part of the paper describes the proposal for increasing the efficiency of machining operations. The proposal includes a description of the suggested solution that will lead to increased efficiency, a machine proposed for the specific operation, appropriate tools and proposed cutting conditions. The benefits of implementing the proposal are also described here, both in terms of saving unit time, and in terms of the machining technology itself, where, for example, the formation of chips is improved, the inner tension of machined components reduced, etc. The diploma thesis further includes a technical-economic evaluation assessing the economic benefits of the changes introduced.
237

Využití vysokotlakého chlazení na dlouhotočných automatech / Use of High-pressure Cooling System for Long-turn Machines

Kinc, Jiří January 2015 (has links)
The thesis describe high-pressure cooling system and present experiment, when is using this cooling technology for turning cylindrical workpiece to long-turn machines. Workpiece manufactured using high-pressure cooling system is compares with Workpiece manufactured using low-pressure cooling system. Results are analyzed, evaluated and plotted in a single graphical relationships. The thesis is completed the analysis, discussion and recommendations regarding the using of high-pressure cooling.
238

Technologie CNC vroby souÄsti z hlin­kov© slitiny / Technology of CNC production of aluminium alloy part

Novotn, Michal January 2014 (has links)
The diploma thesis Technology of CNC production of aluminium alloy part is based on the particular specification of the company FP cz s.r.o. The core of the work lies in the proposal of production technology of the given part made from aluminium alloy which is machined by two universal CNC lathes with operating system FANUC. There is an introduction to the issue of characteristics and machinability of aluminium and its alloys because of coherence of the thesis. Practical part is focusing on the particular proposal of production technology which consists of the casting analysis, method of clamping on the chosen machines, choice of tools and verification of the production. There can be achieved effective production and significant time reduction with proposed technology.
239

Řešení technologie součásti "ventil s kondenzační smyčkou" / Technology Solution for Components: a Valve with Condensing Loop

Jarkovský, Marcel January 2014 (has links)
This Master's thesis focuses on technology of production of the valve body produced by company Armaturka Vranová Lhota, a.s. First part introduces the company and their range of products. Second part of the Dissertation focuses on analysis of the part with details on construction, material and choice of three options of semi-finished product based on minimum expenses. In the third part are introduced current technological processes of assembling, weldment and valve body production. There are proposed two new production options to the current technological production process of body valve using different tools and jigs. New production instructions are calculated to establish times of production. In the conclusion of dissertation is the choice of optimal option considering habitual practice and conditions of company. For this chosen option is calculated technical-economic evaluation.
240

Analýza rizik nástrojářské dílny / Hazard analysis of toolroom workshop

Dubovský, Dávid January 2015 (has links)
This master`s thesis deals with a hazard analysis of selected machinery according to an actual legislative documents in Slovakia, which were taken over from Europien Union directives. The thesis is focused on exploring legislation related to the safety of toolroom workshop in the Czech Republic and Germany. Because of that was done the recherché of harmonized standards in these countries. Subsequently is made the identification of hazards under recherched standards and assessment of control system based on the performance level of the system. In the end are all obtained data evaluated and the precautionary measures are suggested. With taking care of economic factors are finally proposed the possibilities of the elimination of risks.

Page generated in 0.0678 seconds