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Suitable lubricants for deep drawing of stainless steel
Mück, Jonáš ; Staněk, Vojtěch (referee) ; Lidmila, Zdeněk (advisor)
The intention of this thesis is the experimental evaluation of different lubricants and their suitability for deep drawing of stainless steel 1.4404. The testing method is based on the friction model at the point of drawing edge and retainers. This model corresponds with a structure of testing fixture. The suitability of every single lubricant for this application has been determined by comparison of the output, which is dependance of the strength on the track with the reference results. The testing has been performed on many different samples provided by various manufacturers. The best result was measured with the oil Kalorex AT 650 S, manufactured by AT Oil, which belongs to the group of environmentally harmful lubricants. Based on the results of this experiment we can conclude that chlorine content significantly increases the lubrication capability especially under high pressure. The modification of preparation geometry which presumes the elimination of certain undesirable disturbances accompnaying the experiemnt has been also proposed.
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Manufacturing of oil filter
Prokop, Karel ; Humlíček, Jaroslav (referee) ; Podaný, Kamil (advisor)
This thesis deals with the proposal of an oil filter body manufacture. The oil filter body is a rotational part made of DC02 deep drawing steel. With respect to the material, geometry and the size of the production, a deep drawing technology which does not consider wall thinning, was chosen. It was decided about necessity of five drawing operations. Suitable presses for a notching line and the very drawing were selected. Next part of the thesis is given to the design of the rolling tool construction. A drawing die for the first operation is described in details, including the controls and drawings. The economic part compares variants with the requirements of monthly production of 50 000, 180 000 and 350 000 pieces respectively. Due to the economic study, the production of 180 000 pieces per month was chosen.
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Suitable lubricants for deep drawing of stainless steel
Doležal, Jan ; Chudík, Ivan (referee) ; Lidmila, Zdeněk (advisor)
This thesis solves problems of design and construction of testing equipment for testing lubricants for deep drawing and experimental evaluation of suitability of different types of lubricants for specified tests conditions. Most of all it is about finding environmentally friendly lubricant which would provide similar results as lubricants containing chlorine compounds when drawing a stainless austenitic Cr-Ni steel 1.4301. As for lubricants provided for testing by leading home and abroad manufacturers, the ATLAS 3374-140 from Quaker Chemical and the WISURA ZW 3356 from FUCHS, were evaluated as the most suitable environmentally friendly lubricants.
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Sheet metal drawing and its verification by computer simulation
Něnička, Filip ; Kopřiva, Miloslav (referee) ; Štroner, Marek (advisor)
This thesis engages on the differences between the numerical simulations of sheet metal drawing process performed using AutoForm software from AutoForm Engineering, Swiss company and actual results measured using non-contact measurement system Argus from German GOM company. This work used DC06 material (whose mechanical properties were determined at Technical University of Liberec) for comparison. The calculated results of simulations were compared to measured results of actual plate thickness.
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Proposal of the manufacturing procedure for the parts of belt conveyor roller
Pavelek, Michal ; Lidmila, Zdeněk (referee) ; Novotný, Karel (advisor)
The project, which has been elaborated within the framework of Master's Degree in Manufacturing Technology (2303T002), processes a technology proposal for the production of stamped part čelo from DD14 material, with a thickness 4 mm, with production quantities of 100 000 pieces per year, in cooperation with the company UNIRON Ltd. Based on the literature study of deep drawing without thinning of the walls and calculations, production of the part of simple single-function drawing tools was proposed. The first three operations performed on a PYE 100 S/1 hydraulic press and the last calibration operation carried out on a LEK 250 eccentric press. The semi-finished product is blank with a diameter of 195 mm, produced in a simple cutting die. The cutting die is designed for both the material in the form of a sheet metal strip in coils and cut strips of metal sheet, which is associated with the use of two eccentric presses of the LEK 250 and LE 400C types. The proposed manufacturing process was simulated in the PAM-Stamp 2G software, in which the influence of the radius the functional parts of tools to change the thickness of the material is further simulated. The part of the project is a technical and economic evaluation, in which the price of one piece of the product and production quantity at which production becomes profitable was rated.
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Technology of production form - parts by forming
Bezděk, Jiří ; Císařová, Michaela (referee) ; Dvořák, Milan (advisor)
Graduation theses project elaborated within the scope of full-time study with specialization 23037002 submits the proposal of manufacture technologies for irrregularly formed component with flange by surface forming. Material is made from rust-resistant metal plate 17240 with 1mm thickness. Expected annual serie is 50.000pcs. Based on literary pilot project for deep hauling dilemma and its calculations was proposed hauling in instrument with blankholder. The hauling operation is done using hydraulic presser ZH 50 with rated power of 500kN. The drawing instruments are made from tool steel 19573 and heat treated according design doccumentation. The proposal of drawing versions was verified by simulation program Pam-Stamp.
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Production single parts from sheet metal with usage technology deep drawing
Jurča, Jan ; Dvořák, Milan (referee) ; Žák, Ladislav (advisor)
JURČA Jan: The manufacturing of sheet metal part by deep draw technology. Thesis of Master´s Studies, the 5th Year of Study, the School-year 2008/2009, The Institute of Manufacturing Technology, Department of Machining, FSI VUT Brno.The thesis deals with the project of manufacturing the part of the car body – the fifth door by deep draw technology. The material is zinc-coated sheet metal HX220YD EN 10292. Mechanical properties and suitability of the material are evaluated by mechanical tests. The structure of the material is evaluated by metalography scratch pattern. The analysis of draw process and manufacturability of the part is made by calculations and AutoForm software. The production line, necessary machinery and construction solution of draw tool for the manufacturing the part are determined. Last section deals with economical evaluation of the production.
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Production single parts from sheet metal
Hrnčál, Zdeněk ; Dvořák, Milan (referee) ; Žák, Ladislav (advisor)
Project elaborate in terms of engineering studies branch 2303T002 submits proposal technology of production single parts from deep drawing press steel metal plate 11 305.21. On the basis literary study problems blanking, deep drawing and calculations was designed drawing in instrument with holder, to extrusion components serves lower ejector. Combination tool is set on hydraulic press CTH 250 with nominal tensile by force 250 kN. Drawable tools (drawing punch, drawing die) and shear pin tools (blanking punch, blanking die) are made from instrumental steels 19 436.3, heat treated condition to drawing documentation.
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Optimalisation of evaluation methods for phosphating bathes
Brzuchańská, Anna ; Trčka, Josef (referee) ; Zmrzlý, Martin (advisor)
This work deals with phosphating technology of steel. In theoretical part are summarized facts about conventional phosphating process, including steel surfaces pretreatment. In the next chapter the latest contemporary technology of phosphating is discussed, i.e. electrolytic phosphating. This chapter contains principles and characteristics of this technique. Than follow comparisons of electrolytic phosphating and conventional process, concerning economical and ecological aspects. In experimental part is firstly stated nowaday situation of process analyses of phosphating bath for electrolytic phosphating. Intention of experimental part is finding of analytical technique which can be used in operating conditions of phosphating production line. Next chapter render an account of all analytical techniques – measuring of density, refractive index, conductance, reduction potential, pH, turbidity and determination of sulphate, iron and phosphate by indicator papers. Discussion of all results leads to conclusions on tested techniques in connection with practical use in operating conditions of phosphating production line and recommendations for use of individual analytical techniques.
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The Production Technology the fan cover
Hudousek, Jiří ; Dvořák, Milan (referee) ; Císařová, Michaela (advisor)
HUDOUSEK Jiří: The Production Technology the fan cover. The project elaborated in frame of bachelor studies is submitting design of the fan cover production with sheet metal forming technology. Based on the literary pursuit a production process of the workpiece was designed when the blank is formed with deep drawing technology without thickness reduction (pure drawing) and subsequently completed by trimming to size, dimpling of the shell bottom, assembly holes punching and surface treated. Based on the calculation drawing in die with blankholder was designed for drawing operation and according to the force needed and tool size a hydraulic press ZH 160 (manufacturer PRESSHYDRAULIKA, s.r.o.) was selected. Material chosen for the production of workpiece is deep drawing steel sheet DC04 (ČSN EN 10130), production batch is 100 000 pcs. per year.
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