Master thesis – Stress relief method evaluation

Master thesis – Stress relief method evaluation

Scania genomgår nu en transformation från att vara en leverantör av lastbilar, bussar och motorer till en leverantör av kompletta och hållbara transportlösningar.

Ingress

Scania Ferruform AB is a wholly owned subsidiary of Scania. Our mission is to strengthen Scania's competitiveness with today's and future products, through industry-leading skills, efficient processes and cross-functional work. We have daily deliveries of rear axles, side- and cross beams along with other frame components to Scania's chassis assemblies in Södertälje, Zwolle and Angers. With over 500 employees we are one of Luleå’s largest manufacturing industries. We offer a master thesis in the engineering department which is a great entry path into Scania and build relationships for the future.

Background

Scania Ferruform has previously investigated alternative methods for removing unwanted residual stresses in the rear axles after they have been welded. Today, all rear axles pass through an oven for stress relaxation annealing, but Scania Ferruform is interested in the so-called BS (Bend Straightening) method. In order evaluate this concept, these two methods need to be compared from a fatigue strength viewpoint, to ensure the quality of the product.

Assignment

Determine what areas have the highest levels of residual stresses and where the failure nodes are on today’s rear axles. Construct and run small scale experiments (or simulations) in order to characterise how the variables of the BS method impact the resulting fatigue strength. Based on this information formulate a recommendation for how the BS process should be performed in order to increase the fatigue strength of the axles.

Profile

Education: Material Science & engineering, Mechanical Engineering or similar oriented master programmes.

Number of students: 1-2

Start date: January 2019, estimated time needed is 20 weeks.

Contacts persons and supervisors:

Daniel Olovsson, Industrial Engineer, +46 (0)920-72604, daniel.olovsson@scania.com.

Magnus Nyberg, Specialist Industrial Engineer, +46 (0)920-76640, magnus.nyberg@ferruform.com.

Application

Enclosed CV, personal letter and school grades. Last application date: 2018-11-30.
Mer info
Område Luleå
Yrkesroll Teknik & Ingenjör, Ingenjör, Civilingenjör
Typ av anställning Heltid, Tillsvidareanställd
Hemsida http://www.scania.com
Sista ansökningsdag 30 nov (9 dagar kvar)

Om arbetsgivaren

Scania är en världsledande leverantör av transportlösningar. Tillsammans med våra partners och kunder leder vi övergången till ett hållbart transportsystem. Under 2017 levererade vi 82 500 lastbilar, 8 300 bussar samt 8 500 industri- och marinmotorer till våra kunder. Vi omsatte närmare 120 miljarder kronor, varav 20 procent utgjordes av servicerelaterade tjänster. Scania grundades 1891 och finns idag representerat i mer än 100 länder, och har drygt 49 000 medarbetare. Forskning och utveckling är koncentrerad till Sverige, med filialer i Brasilien och Indien. Produktion sker i Europa, Latinamerika och Asien, med regionala produktcentra i Afrika, Asien och Eurasien. Scania ingår i Traton Group. För ytterligare information, besök www.scania.com.