Postupci izrade navoja

undergraduate thesis

• Title (english): Methods for thread making
• Author: Ilija Šimpović
• Mentor: Damir Ciglar (mentor)
• Granter: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture; Zagreb
• Defense date and country: 2015-03-03, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering

Abstract

Navoj je geometrijsko tijelo koje ima široku primjenu u svim granama strojogradnje, ali i svakodnevnom životu. Najčešća vrsta spojeva su vijčani spojevi čiji osnovni elementi, vijak i matica, upravo preko navoja ostvaruju potrebnu vezu. Vijčani spojevi imaju više uloga, kao što je spajanje dijelova, pretvaranje rotacijskog gibanja u translacijsko, podešavanje ili brtvljenje. Navoj ima svoje osnovne karakteristike kao što su promjer, korak, profil i vojnost. Postoji više vrsta navoja, a najčešći je metrički navoj s teorijskim profilom jednako straničnog trokuta. Navoj je moguće izraditi na više načina; glodanjem, urezivanjem, narezivanjem, deformiranjem, brušenjem, a najčešći način izrade je tokarenje koje pokriva široki spektar navojnih profila. Svaki način izrade ima svoje prednosti i nedostatke, tako da se način izrade odabire prema potrebama površine navoja, veličini serije te dostupnim alatnim strojevima i reznim alatima. Prilikom svake obrade moguća je pojava grešaka, koje je važno prepoznati te uz pomoć znanja i iskustva ukloniti u što kraćem vremenskom roku da se izbjegnu zastoji i pojava škarta.

Abstract (english)

Thread is geometrical object which is widely used in every aspect of engineering and daily life. The most common type of joints are screw joints which basic elements, a screw and a bolt, are connected by thread. Screw joints have more functions such as joining parts, converting rotational into translational movement, adjusting and sealing. Thread has some characteristics such as a diameter, pitch, profile and number of starts of the thread. There are several types of thread, and the most common type is metrical thread with theoretical isosceles profile. The thread can be made in many ways; by milling, tapping, dieing, forming, grinding, but the most common way is turning which enables making many types of thread profiles. Every method has advantages and disadvantages, so the surface quality demands, number of parts and availability of machines and equipment determines the method that will be used. There is always a possibility of an error during thread making, which is important to recognize and fix as soon as possible by using knowledge and experience to avoid delays and incorrect parts.

• Keywords: vijčani spojevi; način izrade navoja; greške izrade navoja
• Keywords (english): screw joints; thread making methods; errors
• Language: croatian
• URN:NBN: urn:nbn:hr:235:427351
• Study programme: Title: Mechanical Engineering; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka strojarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2019-05-22 13:14:01