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Suruõhu tööriista jälgimisseadme materjali valik

Pere, Ruth (2015) Suruõhu tööriista jälgimisseadme materjali valik. [thesis] [en] Choice of material for air tool tracking device.

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Abstract

Käesolevas lõputöös valiti suruõhu tööriista jälgimisseadme komponentide valmistamiseks sobivad materjalid, läbi mille vähendati detaili kaalu ja optimeeriti mõõtusid. Lõputöös on ka kirjeldatud suruõhu tööriista jälgimisseadme ehitust. Materjalide valikul võeti nende omaduste kõrval arvesse tingimusi tehastes, kus pneumoseadmed eelkõige kasutust leiavad, võimalikke nõudeid materjalidele ja töödeldavust. Töö tulemusena valitud materjalide puhul on olulised näitajad väike tihedus, tugevus, kulumiskindlus ja tehnoloogilised omadused. Sobivate materjalide välja selgitamiseks tuli neid võrrelda omavahel, analüüsida nende omaduste vastavust nõuetele ja kasutamisvaldkondi ning selgitada välja parim võimalik. Selle alusel leiti väiksemate keerulise kujuga komponentide valmistamiseks paslikud olevat termoplastid polüamiid ja polüpropüleen. Elektrit juhtiva kontakti materjalina leidis kasutust vasest või messingist rõngas. Ühendusotsiku ja korpuse materjalidena pakuvad rahuldavaid tulemusi alumiiniumi sulamid 6082-T6 ja 7075-T6. Materjalide töötlemise võimalusi arvesse võttes toodetakse termoplastidest keerulise kujuga väikesed komponendid survevalumeetodil, metallisulamitest korpus, ühendusotsik ja rõngakujuline elektrikontakt treitakse. Kontaktrõngana kasutatud vase puhul võib pikemas perspektiivis uurida kuldamist, mille väike kulu võib kaasa aidata kaalu ja mahu vähendamisele kontaktrõnga arvelt. Detaili arendamise käigus võib tulevikus seadme konstruktsioon veel muutuda, aga ettevõte siiski lähtub selle valmistamisel lõputöös valitud materjalidest.

Abstract [en]

The aim of this thesis was to select suitable materials to produce components of compressed air tracking device. This is solution that is developed by NAS Production OÜ to track all equipment, which work with compressed air, and this also helps to follow workers contacts with vibrating air tools. Main goals were to reduce weight, decrease production costs and increase durability. During preparation of the thesis, first considered environment, where device is going to work. Then were studied, what kind of production types can be used to make details of device. And then what kind of materials can be used, wich are obtainable and with reasonable price. After that, all materials were compared, and best solutions were picked. End result was, that best solution for smaller details are thermoplasts: polyamide and polypropylene. Suitable materials for conductive ring are copper or brass. In a longer perspectice gilding should also be considered. And materials for biggest details, body and connection coupling are going to be aluminium alloys: 6082-T6 and 7075-T6. Body is the part that is connected and disconnected with compressed air hose multiple times, and it is also a part that have most contacts with outside environment. So we decided that only theoretical analysis is not enough and it our selection have to be tested. So we designed special test-machine that imitates connecting compressed air hose to body. We tested with 10 000 cycles, and after measuring and visual observation, results were, that materials that we chose, were suitable. And finally, epoxy adhesive was chosed. Main thing I learned during preparation of thesis, is that one thing is to pick suitable materials theoretically. But in real life there are more problems to face with, starting from testing if material can be attached between lathe´s clamps without them making any production marks on detail, to finding companies who can provide necessary material on right amounts and on right time. I realised that preparation that our school gave me is enough to deal with these kind of tasks. Also results, I obtained in this thesis are valuable information for company, and when this detail is going to production, it is produced from materials, found in this thesis.

Item Type: thesis
Advisor: Toomas Pihl
Subjects: Mechanical Engineering > Engineering Materials > Material and Technology Selection
Divisions: Institute of Circular Economy and Technology > Engineering Materials and Marketing
Depositing User: Ruth Pere
Date Deposited: 08 Jun 2015 07:53
Last Modified: 22 Apr 2016 08:40
URI: http://eprints.tktk.ee/id/eprint/1241

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