Skip to main content

LUP Student Papers

LUND UNIVERSITY LIBRARIES

Kvalitetssäkring vid produktion av värmepumpar

Krönlein, Hans LU (2020) MMTM01 20202
Production and Materials Engineering
Abstract
Nibe Industries has grown from being a local Swedish company to a global group with
subsidiaries around the world. Nibe has protected its roots and still retains the head office in Markaryd, where they invest heavily in production locally (Nibe Industrier AB, 2020). The master thesis was conducted at the subsidiary Nibe AB in Markaryd within Climate Solutions” business area with a special focus on heat pumps. Nibe is a company that is constantly growing, the goal is to deliver faultless products to the customer. The company has various departments that are involved with quality systems. To ensure the quality of the product, there are different control stations when installing heat pumps, these are spread out in each production stage.

... (More)
Nibe Industries has grown from being a local Swedish company to a global group with
subsidiaries around the world. Nibe has protected its roots and still retains the head office in Markaryd, where they invest heavily in production locally (Nibe Industrier AB, 2020). The master thesis was conducted at the subsidiary Nibe AB in Markaryd within Climate Solutions” business area with a special focus on heat pumps. Nibe is a company that is constantly growing, the goal is to deliver faultless products to the customer. The company has various departments that are involved with quality systems. To ensure the quality of the product, there are different control stations when installing heat pumps, these are spread out in each production stage.

The purpose of the thesis is to provide in-depth knowledge of quality assurance and its methods, to create a basis that can form a stable groundwork for any future efforts. The main purpose of the thesis shall result in possible proposals for improvement measures on how quality assurance is to be implemented to achieve the desired quality. The assignment was to analyse and find alternative solutions for quality assurance. The background of the assignment is that costs for inspections and quality assurance have increased. It has emerged through interviews with employees and observations that reporting systems for quality deficiencies are complicated and unclear. This results in errors being reported as a “general error” with free text or not being reported at all. This complicates an analytical approach to identify problem areas and finding out the root cause of the problems. The reporting systems consist of various components, including scrapping, discovered quality deficiencies in production and product audits, which consist of a finished product being reviewed in search of any quality deficiencies.
In the author's opinion, the reporting systems need to be reviewed, it is important that reporting provides more details with a connection to the root cause and results so that deeper conclusions can be drawn. The author's recommendation is to set up a completely new factor/cause groups as well as result parameters similar to the PSM method according to Ståhl (2012). This new coding system will include all reporting systems, which results in a unified system where comparison can be created between the different systems. Instead of increasing the number of inspectors, the goals should be achieved by other means such as; development work where design is maintained with quality in mind, production improvement where the products are manufactured right from the start and improvement is achieved, to increase competence, i.e. that the concept of quality is introduced throughout the company. Furthermore, in the author's opinion, it is important to have a functioning and reliable base regarding data for quality work to be able to make the right decision based on correct data and continue to constantly work with development. Training and introduction of quality concepts in all stages and departments within Nibe AB is also an important part of the change challenge. Furthermore, education on quality work and its issues should be mandatory within
the company. In summary, the path to a new system will take time, of utmost importance is that all relevant departments and their staff are included in both the work with codebase, interface, and standardisation of reports. The proposal is based on the theory of Systematic Productions Analysis and Total Quality Management. (Less)
Popular Abstract (Swedish)
Nibe Industrier har vuxit från att vara ett lokalt svenskt bolag till en global koncern med dotterbolag runt om i hela världen. Företaget värnar om sina rötter och har således kvar huvudkontoret i Markaryd där de investerar mycket i produktion lokalt. Examensarbetet utfördes på dotterbolaget Nibe AB i Markaryd inom affärsområdet Climate Solutions med specialinriktning på värmepumpar. Nibe är ett företag som konstant växer med en målsättning att leverera felfria produkter ut till kund. Företaget har olika avdelningar som är involverade i kvalitetssystem, avdelningen ”Kvalitet & Miljö” utför uppföljning samt driver på kvalitetsarbete med mera. För att säkerställa produktens kvalitet finns det olika kontrollstationer vid montering av... (More)
Nibe Industrier har vuxit från att vara ett lokalt svenskt bolag till en global koncern med dotterbolag runt om i hela världen. Företaget värnar om sina rötter och har således kvar huvudkontoret i Markaryd där de investerar mycket i produktion lokalt. Examensarbetet utfördes på dotterbolaget Nibe AB i Markaryd inom affärsområdet Climate Solutions med specialinriktning på värmepumpar. Nibe är ett företag som konstant växer med en målsättning att leverera felfria produkter ut till kund. Företaget har olika avdelningar som är involverade i kvalitetssystem, avdelningen ”Kvalitet & Miljö” utför uppföljning samt driver på kvalitetsarbete med mera. För att säkerställa produktens kvalitet finns det olika kontrollstationer vid montering av värmepumpar, dessa är utspridda i varje led (Nibe Industrier AB, 2020).

Arbetets syfte är att ge en fördjupad kunskap om kvalitetssäkring och dess metoder, att skapa ett underlag som kan ligga till grund för eventuella framtida insatser. Arbetets huvudsakliga mål är att om behov konstateras, lägga fram förslag på förbättringsåtgärder på hur kvalitetssäkring skall genomföras för att uppnå önskvärd kvalitet. Bakgrunden till uppdraget är att kostnader för kontroller och kvalitetssäkring har ökat, dessutom vill man fånga upp eventuella kvalitetsbrister i ett tidigt stadium för att minska kostnader för till exempel omarbetning och kassationer. Det har även framkommit via intervjuer samt observationer att inrapporteringssystem för kvalitetsbrister är komplicerade och otydliga gällande orsakskoder. Resultatet blir att felen rapporterassom ett ”generellt fel” med fri text eller rapporteras inte alls. Detta försvårar ett analytiskt tillvägagångssätt för att identifiera problemområden och grundorsak till problemen.

Rapporteringssystemen består av olika komponenter där kassationer, upptäckta kvalitetsbrister ute i produktion samt produktrevision av samtliga delar måste genomgås för att hitta eventuella kvalitetsbrister. Ur författarens synvinkel så behöver rapporteringssystemen ses över, där vikt bör läggas på att rapportering ger fler detaljer med en koppling till grundorsak och resultat så att viktiga slutsatser kan dras. Författarens rekommendation är att sätta upp helt nya faktor-
/orsaksgrupper samt resultatparametrar likt PSM metoden enligt Ståhl (2012). Detta nya kodsystem skall innefatta alla rapporteringssystem vilket resulterar i ett enhetligt system där jämförelse kan skapas mellan de olika systemen. Enligt författaren är det viktigt att få en fungerade och tillförlitlig bas gällande data för kvalitetsarbete, för att på så sätt kunna fatta rätt beslut baserat på korrekt data och fortsatt ständigt arbeta med utveckling. Vidare är även utbildning och introducering av kvalitetsbegrepp i alla steg och avdelningar inom Nibe AB en viktig del av förändringsarbetet. Utbildning om kvalitetsarbete och dess frågor bör således vara obligatorisk för alla inom företaget. Sammanfattningsvis, vägen till ett nytt system kommer ta tid, av yttersta vikt är att alla berörda avdelningar och dess personal inkluderas i både arbetet med kodbas, interface samt standardisering av rapporter. Förslagen bygger på teorierna från Systematisk Produktionsanalys och Total Quality Management. (Less)
Please use this url to cite or link to this publication:
author
Krönlein, Hans LU
supervisor
organization
course
MMTM01 20202
year
type
H3 - Professional qualifications (4 Years - )
subject
keywords
Kvalitetssäkring, Systematisk Produktionsanalys, Total Quality Management
report number
LUTMDN/(TMMV-5306)/1-56/2020
language
Swedish
id
9031230
date added to LUP
2020-11-10 11:04:30
date last changed
2021-09-13 16:46:13
@misc{9031230,
  abstract     = {{Nibe Industries has grown from being a local Swedish company to a global group with
subsidiaries around the world. Nibe has protected its roots and still retains the head office in Markaryd, where they invest heavily in production locally (Nibe Industrier AB, 2020). The master thesis was conducted at the subsidiary Nibe AB in Markaryd within Climate Solutions” business area with a special focus on heat pumps. Nibe is a company that is constantly growing, the goal is to deliver faultless products to the customer. The company has various departments that are involved with quality systems. To ensure the quality of the product, there are different control stations when installing heat pumps, these are spread out in each production stage.

The purpose of the thesis is to provide in-depth knowledge of quality assurance and its methods, to create a basis that can form a stable groundwork for any future efforts. The main purpose of the thesis shall result in possible proposals for improvement measures on how quality assurance is to be implemented to achieve the desired quality. The assignment was to analyse and find alternative solutions for quality assurance. The background of the assignment is that costs for inspections and quality assurance have increased. It has emerged through interviews with employees and observations that reporting systems for quality deficiencies are complicated and unclear. This results in errors being reported as a “general error” with free text or not being reported at all. This complicates an analytical approach to identify problem areas and finding out the root cause of the problems. The reporting systems consist of various components, including scrapping, discovered quality deficiencies in production and product audits, which consist of a finished product being reviewed in search of any quality deficiencies.
In the author's opinion, the reporting systems need to be reviewed, it is important that reporting provides more details with a connection to the root cause and results so that deeper conclusions can be drawn. The author's recommendation is to set up a completely new factor/cause groups as well as result parameters similar to the PSM method according to Ståhl (2012). This new coding system will include all reporting systems, which results in a unified system where comparison can be created between the different systems. Instead of increasing the number of inspectors, the goals should be achieved by other means such as; development work where design is maintained with quality in mind, production improvement where the products are manufactured right from the start and improvement is achieved, to increase competence, i.e. that the concept of quality is introduced throughout the company. Furthermore, in the author's opinion, it is important to have a functioning and reliable base regarding data for quality work to be able to make the right decision based on correct data and continue to constantly work with development. Training and introduction of quality concepts in all stages and departments within Nibe AB is also an important part of the change challenge. Furthermore, education on quality work and its issues should be mandatory within
the company. In summary, the path to a new system will take time, of utmost importance is that all relevant departments and their staff are included in both the work with codebase, interface, and standardisation of reports. The proposal is based on the theory of Systematic Productions Analysis and Total Quality Management.}},
  author       = {{Krönlein, Hans}},
  language     = {{swe}},
  note         = {{Student Paper}},
  title        = {{Kvalitetssäkring vid produktion av värmepumpar}},
  year         = {{2020}},
}