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Lindijuhtija tootmise juurutamine AS Normas

Ilves, Sander (2019) Lindijuhtija tootmise juurutamine AS Normas. [thesis] [en] Implementation of Pillar Loop Production at AS Norma.

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Abstract

Käesoleva lõputöö käigus tegeleti passiivse auto turvavarustuselemendi lindijuhtija protsessi juurutamise ja optimeerimisega. Eesmärgi täitmist loetakse positiivseks toote kvaliteedinõuete tagamisega kliendi poolt nõutud tootmismahtude juures. Selle kindlustamiseks toetuti AS Norma pikaajalisele kogemusele metallitöötlemise ja plastisurvevalu valdkonnas. Lõputöö esimeses peatükis antakse ülevaade ettevõtte AS Norma kohta ja kirjeldatakse võimalikke tootmisprotsesse. Lisatud on ka protsessid, mis ei ole hetkeseisuga lindijuhtija tootmiseks tootmissammudesse kaasatud, kuid vajadusel on võimalik kaasata. Lindijuhtija teemat kirjeldatakse järgmises peatükis, kus seletatakse lahti, mis tootega on tegu. Antakse lühinimekiri protsessidest, mida kasutatakse ja tutvustatakse peamisi dokumente, mille alusel tootmine toimub. Kolmandas peatükis keskendutakse lindijuhtija armatuuri tootmisele. Antakse ülevaade materjali ettevalmistusest, stantsimisest, tootmiseks kasutatavast rakisest, vibrotöötlemisest ja armatuuri karastamisest enne plasti ülevalusse suundumist. Lõputöö neljandas osas süvenetakse plasti survevalule ja seal kasutatavatele seadmetele. Kirjeldatakse protsessis olevaid etappe, mis on vajalikud tootmise automatiseerimiseks ja kvaliteetse toodangu tagamiseks. Tutvustatakse ka materjali ja selle omadusi, mis on kasutusel. Tootmisprotsessi optimiseerimist käsitlevas peatükis analüüsitakse tootmisparameetrite mõju toote kvaliteedile. Seletatakse lahti katsetused, mida toote heakskiitmiseks on vajalik teha, et olla kindel vastavuses sätestatud standarditele. Selgitatakse, kuidas parameetreid valitakse ja mille alusel erinevad väärtused saadatakse. Kokkuvõtteks võib väita, et lõputööks sätestatud eesmärk saavutati. Lindijuhtija läbis pärast optimiseerimisparendusi kõik valideerimise katsed. Samal ajal säilitades etteantud tsükliaega ja tootmismahtu. Lõputööd tehes omandas autor olulisi teadmisi plast-ja terasmaterjalidega tootmisest, mis tulevad kasuks uute projektidega töötamisel.

Abstract [en]

The purpose of thesis is the implementation and process optimization of automotive safety component pillar loop. To achieve this goal it is necessary to treat all the needed process steps separately since a small correction in one process step can have a considerable impact on the final outcome. Therefore, the thesis gives an overview of all the steps needed to produce the pillar loop but in depth analyzes two of the main manufacturing steps- sheet metal stamping and plastic injection overmoulding. Goal is achieved if the production quantites are guaranteed and quality requirements ensured simultaneously. In the beginning a clear overview of company AS Norma is given with all its possible manufacturing capabilities. Processes that are currently not in use for pillar loop are also included so if they are needed at one point it is possible to implement them. Plastics injection moulding is very common production method in automotive industry for its wide scope of product availability and production consistency. It is possible to produce very complex designed details and warrant quality requirements at high quantities. In addition, plastic components do not weigh as much as their metal counterparts which is one of the decision points when choosing a product. In the section of injection moulding needed production equipment is described together with additional machines that are needed for process automatisation and ensuring the quality standards. Also the material used for production is introduced together with its properties. Chapter of process optimizing gives an overview of all the injection moulding process parameters and their influence on the product itself. It is explained what changing a certain parameter modifies in the product and its quality. Performed validation tests are introduced that are needed to start manufacturing the products for serial production and their outcome before and after optimizing. To conclude the goal was achieved since after the process optimizing the pillar loop got approved into the serial production while maintaining the quality requirements and production quantities needed.

Item Type: thesis
Advisor: Toomas Pihl
Subjects: Mechanical Engineering > Production Engineering and Technology > Equipment and Jigs
Mechanical Engineering > Production Development > Dies and Stamps
Mechanical Engineering > Production Engineering and Technology > Metal Forming Technology
Mechanical Engineering > Production Engineering and Technology
Mechanical Engineering > Production Development
Divisions: Institute of Circular Economy and Technology > Industrial Technology and Marketing
Depositing User: Sander Ilves
Date Deposited: 06 Jun 2019 07:29
Last Modified: 06 Jun 2019 07:29
URI: http://eprints.tktk.ee/id/eprint/4316

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