Arbetsplatsutformning av kulventilsmontering
Typ
Examensarbete på kandidatnivå
Program
Publicerad
2020
Författare
Larsson, Oscar
Lejon, Linus
Lewis, Daniel
Llidhammar, Martin
Lokat, Adil
Sandberg, Anton
Modellbyggare
Tidskriftstitel
ISSN
Volymtitel
Utgivare
Sammanfattning
Mann Teknik AB, henceforth MannTek, is a company located in Mariestad, Sweden.
MannTek produces valves and couplings used at an industrial scale, one type of valve
the company produces is the ball valve. The ball valve accounts for a small part of the
company's yearly revenue and the assembly line for the product has therefore not been
developed or analyzed. The projects goal is to create a proposal for how the ball valves
assembly line layout could be improved.
The project started with a trip to MannTek's factory in Mariestad, where the
group received a presentation from the company describing both the company, its
philosophies and its products. After the initial visit a methodology for the project was
created. The methodology was focused on minimizing waste and therefore to use the
time study program AviX to study the assembly line. The result from the time study
was thereafter used in the methodology called Simpli ed Systematic Layout Planning
[Muther, 1974] to create a proposal for a new assembly line layout.
Data was collected at the factory as well as through correspondence with MannTek.
Both quantitative and qualitative data was collected to get a broader understanding of
the assembly process [Davidson and Patel, 2014]. The quantitative data was collected
through a custom built Microsoft Excel program that let the workers collect data in a
simple way with an easy to use interface. User experience was espacially important to
make sure that the data was reliable. Qualitative data was collected with pictures of the
assembly process, video as well as observations.
The method FSLP was used to create a proposal for a new layout for the assembly of ball
valves [Muther, 1974]. MannTek prefered an alternative without any investments since
they want to use their current functions. The results are then discussed from multiple
di erent point of views and connects the result with the theory that is the projects
backbone. Using the result and the discussion as a foundation, a well-founded conclusion
to the project was made.
It was concluded that an assembly layout that is optimized regarding distance
with only one production
ow was the most suitable layout for the regarded assembly
process. The chosen layout is backed by the collected quantative data, the digital time
study as well as observations of the current assembly process. It is also concluded
that 5S [Chiarini, 2014] should be implemented together with continuous improvement
[B ornfelt, 2018] to improve the workplace further. With an organized workplace, the
ow
through the assembly line will be more stable and the risk of creating losses will decrease.