This report aims to describing the work behind the development of a masonry heater. The masonry heater is developed in collaboration with the company Transient Design KB that is a product development company located in Alingsås. The company sees a possibility to cover a market segment where modern technology and design are missing. The report presents those methods and approaches that have been used and gives an overview to how the project has been carried out. It describes how the ideas behind the final results have produced and how they have been developed during the project's time. In the report you can also read about the final concept with its choices of construction and materials. The report is completed with a presentation of a final concept and a ground for possible future production. / Denna rapport syftar till att beskriva arbetet bakom utvecklingen av ett värmeelement. Värmeelementet utvecklas i samarbete med företaget Transient Design KB som är ett produktutvecklingsföretag beläget i Alingsås. Företaget ser en möjlighet att täcka ett marknadssegment där modern teknik och formgivning saknas. Rapporten presenterar de metoder och arbetssätt som används och ger en överblick över hur projektets arbetsgång sett ut. Den beskriver hur idéerna bakom det slutgiltiga resultatet tillkommit och hur de har utvecklats under arbetets gång. I rapporten går även att läsa om det slutgiltiga konceptet med dess konstruktion och materialval. Rapporten avslutas med en presentation av ett färdigt koncept och tillverkningsunderlag för eventuell framtida produktion.

Abstract (in English) The work that lead to a CE- marking and the creation of a total drawing foundation on an existing machine carried out on the company Polytec Composites Sweden AB in Ljungby. The company have design an machine that exist in six example that runs in the production. To be able to use the machine the company have to work out a CE-marking. The process that summed up all the document that needs for the machine to make a CE-marking. The documentation includes a total drawing over the machine and a risk analysis performed by a group employers on the company. The computer program that i used to make the drawings is Catia V5. The work that the company and the student performed ended up in a CE-marking of the machine. / Sammanfattning (på svenska) Arbetet med att CE-märka och skapa ett ritningsunderlag på en befintlig maskin genomfördes på företaget Polytec Composites Sweden AB i Ljungby. Företaget har konstruerat och tagit fram en maskin som finns i 6st exemplar och som används i produktionen. För att få använda maskinerna så behövdes en CE-märkning så att maskinerna är godkända för att användas. Processen där sammanställning av dokumentation på en maskin som ska CE-märkas utfördes. Underlaget innefattar bland annat material så som komplett ritningsunderlag och en riskanalys, utförd av studenten och en grupp personer från företaget. CAD programmet som jag använde mig av för att framställa ritningarna heter Catia V5. Arbetet resulterade i en CE-märkning som företaget utförde tillsammans med mig och mitt examensarbete.

<p>Abstract (in English)</p><p>The work that lead to a CE- marking and the creation of a total drawing foundation on an existing machine carried out on the company Polytec Composites Sweden AB in Ljungby. The company have design an machine that exist in six example that runs in the production. To be able to use the machine the company have to work out a CE-marking. The process that summed up all the document that needs for the machine to make a CE-marking. The documentation includes a total drawing over the machine and a risk analysis performed by a group employers on the company. The computer program that i used to make the drawings is Catia V5. The work that the company and the student performed ended up in a CE-marking of the machine.</p> / <p>Sammanfattning (på svenska)</p><p>Arbetet med att CE-märka och skapa ett ritningsunderlag på en befintlig maskin genomfördes på företaget Polytec Composites Sweden AB i Ljungby. Företaget har konstruerat och tagit fram en maskin som finns i 6st exemplar och som används i produktionen. För att få använda maskinerna så behövdes en CE-märkning så att maskinerna är godkända för att användas.</p><p>Processen där sammanställning av dokumentation på en maskin som ska CE-märkas utfördes. Underlaget innefattar bland annat material så som komplett ritningsunderlag och en riskanalys, utförd av studenten och en grupp personer från företaget. CAD programmet som jag använde mig av för att framställa ritningarna heter Catia V5. Arbetet resulterade i en CE-märkning som företaget utförde tillsammans med mig och mitt examensarbete.</p>

Grease-lubricated journal bearings present a common challenge for construction equipment manufacturers in the world. The common design methodology is based on empirical data and has worked very well historically because the market and governments have accepted that bearings in construction equipment need frequent lubrication and exchange of worn parts. Legal and market requirements will soon demand lower environmental impact and increased machine efficiency. These requirements call for better methods of designing grease lubricated journal bearings. The goal of the outlined work was to develop better design methods for grease lubricated journal-bearing design used in heavy-duty construction equipment machines, in order to prolong life and lubrication intervals. The research approach of the project can roughly be divided into three phases: 1. Development of test apparatus and test methods for journal bearing studies. 2. Bench tests of grease lubricated journal bearing design. 3. Verification between bench tests and computer simulations. In the thesis the current state of the art in bearing design for construction equipment is discussed and summarized in the form of design guidelines. The suggested design steps are just a mean to get to the starting point of design. The simple guidelines do however serve a purpose when collected since most published bearing design guidelines are aimed at the bushing material or at continuously rotating bearings. The influence of housing, environment and load cases can not be ignored when designing a bearing. Long term field-testing and experience can not be replaced until better design criteria have been established. Paper A deals with the design of the bearing test apparatus that was built and evaluated. Comparisons between theoretical contact and contact elements in Finite Element program have been made and discussed in paper B. In paper C a replica technique for measuring wear of large field specimens was evaluated. A case study of bearing housing design was performed in paper D utilizing Finite Element program and then validated in paper E in the bearing test apparatus. The influence of grease groove design on bushing life was tested and evaluated in paper F. Wear simulation of a plain bushing has been performed with a Finite Element program and presented in paper G. / QC 20100930

This report was written as a result of a Bachelor Degree Project, together with Swepart Transmission AB. The report contains the construction of a hydraulic press for the assembly operation. The project started with a new construction of a hydraulic press for the bearings’ assembly. The goal within the thesis work was to fit the three bearings to the housing by only one press motion. This operation should be very safety because of the sensitive tolerance at the bearings and housing. Construction of the cylinders, rams and bolster were the most important parts at this project because this parts’ functions are very important for this assembly. The next step of this thesis was to calculate the hydraulic press components’ parameters and then choose the suitable components. The focus was to choose more useful and reliable components. The hydraulic press was modeled in the CAD program Solid Works and 2D technical drawing was drawn in the Autocad. The frame material was chosen and the frame was analysised in the Solid Works.

<p>To be more competitive in the market, many companies are trying to speed up the quotation process and quote more attractive prices. Therefore, they have identified a need for support in the quotation process in order to reduce the quotation lead-time and ensure a higher level of accuracy in the cost estimations. The Quotation Calculator, an application program, has been developed as part of the degree thesis which was carried out at AB Norrahammars Mekaniska Verkstad, NMW 2006/07. This Quotation Calculator can be operated to calculate the material and manufacturing costs of a new product.</p><p>NMW has recently acquired licenses for CATIA V5, Dassault Systems, for the purpose of making process planning and NC-programming more efficient. NMW wants to generate the data needed from the machining module for the cost calculations. Hence this project was initiated in order to extract data from CATIA V5 for further use in Quotation Calculator or other computer system in NMW.</p><p>This work has resulted in a system developed with a common hosted programming language to extract and transfer information. The system retrieves model geometry from CAD and information on process planning from CAM, then matches the information in the application for the purpose of cost estimation. The system once developed, is supposed to be used for every new product. For this approach, the relationship of the data from CATIA V5 and the Quotation Calculator has been analyzed.</p><p>Within this thesis, the focus is on production cost estimation. The method used here is programming in Visual Basic Editor to extract information from the machining module in CATIA V5 and then import them to Microsoft Excel. With standard operations, tables of data and several inputs, the cost calculation and hence the quotation process can be automatically implemented. This work has been generated with the Quotation Calculator. With the correct input data to process planning and this new quotation system, the machining time and the costs can be estimated more accurately and easier. The time and cost information is made available for decision making. As a result, the lead time for the quotation process will be shortened and a relatively more attractive price can be quoted to the customers.</p>

<p>Sammanfattning</p><p>Författaren Kristoffer Larsson har skrivit rapporten tillsammans med grävlastarstillverkaren Huddig i Hudiksvall. Rapporten beskriver nyutvecklingen av Huddigs spakkonsoler. Bakgrunden till examensarbetet är att Huddig har haft kontinuerlig utveckling av sin interiör och hytt men spakkonsolerna har inte följt med i den utvecklingen. Målet med examensarbetet var att ta fram fyra olika prototyper med hänsyn på utformning, handergonomi, knapplacering, trängstyrningsfunktion, rototilt, materialval och tillverkningsmetod.</p><p>För att författaren skulle få en bild av vad det fanns för kundsynpunkter och vad andra personen som har en relation till Huddig har för synpunkter gjordes en marknadsundersökning. Därefter följde arbetet med att bryta ned arbetet och produkten i delar med olika metoder.</p><p>Åtta olika konceptförslag skissades fram och slutligen sållades sex olika delar från koncepten fram. En grupp från Huddig och författaren Kristoffer Larsson tyckte dessa delar var bäst lämpade att gå vidare med. De delar som gick vidare var:</p><p>− Konisk underdel</p><p>− Kantig form</p><p>− Dubbla rader med knappar på vänster konsol</p><p>− Utåtlutande trängstyrning</p><p>− Fram/back utåtlutande</p><p>− Tvåhandsgrepp för trängstyrningen</p><p>− Placering av stödbensreglage</p><p>Utifrån dessa kommentarer och synpunkter på de framsållade koncepten skissade författaren fram fyra koncept som valdes att göras prototyper av. Skälet till att prototyper valdes att tillverkas var att det är svårt att känna och testa om ett koncept verkligen fungerar eller inte genom att bara kolla på en skiss.</p><p>Målet med examensarbetet var att generera fram unika koncept men även att tillverka prototyper av dem, vilket uppnåddes. Utifrån resultat av denna rapport och prototyperna kan Huddig fortsätta att utveckla spakkonsolerna till en genomtänkt och smart lösning.</p> / <p>Abstract</p><p>The author Kristoffer Larsson wrote this examinations paper for the excavator loader company Huddig AB in Hudiksvall. The subject for this bachelor’s thesis is development of joystick pads at Huddig. The background for the bachelor's thesis is that Huddig have been during the last years developed and redesigning the interior of the cabin. The problem is that the joystick brackets haven’t followed the same development. The goal with this bachelor's thesis is to develop and manufacture four prototypes with consideration on design, ergonomics, bottom positions, control of steering, rototilt, choice of material and manufacturing method.</p><p>To get a picture of what the drivers want and theirs aspect of the development of the joysticks pads the author did a market research with Huddigs customers. After the market research was done some methods and functions solving methods was used to break down the product to different functions.</p><p>Eight different concepts were generated and the finial concepts were selected of a group from Huddig and Kristoffer Larsson. They selected the concepts because they taught that they were best suited to manufacture prototypes of. These are the subjects of the concepts:</p><p>− Conic underpart</p><p>− Angular design</p><p>− Double rows with bottoms at left bracket</p><p>− Tilted steering control</p><p>− Tilted transport direction shifter</p><p>− Two hand grip for steering</p><p>− Placement of hydraulic lifters</p><p>From these comments and aspects the author drew four sketches to have as guidelines for the prototypes. The reason to make prototypes was that it is hard to anticipate if a concept works in the real life based from a sketch.</p><p>The goal with this bachelor's thesis was to design and manufacture innovated concepts which have been done. From the result of the bachelor's thesis Huddig can use it to continue to develop the joystick brackets to a successful product.</p>

<p>This report was written as a result of a Bachelor Degree Project, together with Swepart Transmission AB. The report contains the construction of a hydraulic press for the assembly operation.</p><p>The project started with a new construction of a hydraulic press for the bearings’ assembly. The goal within the thesis work was to fit the three bearings to the housing by only one press motion. This operation should be very safety because of the sensitive tolerance at the bearings and housing. Construction of the cylinders, rams and bolster were the most important parts at this project because this parts’ functions are very important for this assembly.</p><p>The next step of this thesis was to calculate the hydraulic press components’ parameters and then choose the suitable components. The focus was to choose more useful and reliable components.</p><p>The hydraulic press was modeled in the CAD program Solid Works and 2D technical drawing was drawn in the Autocad. The frame material was chosen and the frame was analysised in the Solid Works.</p>

To be more competitive in the market, many companies are trying to speed up the quotation process and quote more attractive prices. Therefore, they have identified a need for support in the quotation process in order to reduce the quotation lead-time and ensure a higher level of accuracy in the cost estimations. The Quotation Calculator, an application program, has been developed as part of the degree thesis which was carried out at AB Norrahammars Mekaniska Verkstad, NMW 2006/07. This Quotation Calculator can be operated to calculate the material and manufacturing costs of a new product. NMW has recently acquired licenses for CATIA V5, Dassault Systems, for the purpose of making process planning and NC-programming more efficient. NMW wants to generate the data needed from the machining module for the cost calculations. Hence this project was initiated in order to extract data from CATIA V5 for further use in Quotation Calculator or other computer system in NMW. This work has resulted in a system developed with a common hosted programming language to extract and transfer information. The system retrieves model geometry from CAD and information on process planning from CAM, then matches the information in the application for the purpose of cost estimation. The system once developed, is supposed to be used for every new product. For this approach, the relationship of the data from CATIA V5 and the Quotation Calculator has been analyzed. Within this thesis, the focus is on production cost estimation. The method used here is programming in Visual Basic Editor to extract information from the machining module in CATIA V5 and then import them to Microsoft Excel. With standard operations, tables of data and several inputs, the cost calculation and hence the quotation process can be automatically implemented. This work has been generated with the Quotation Calculator. With the correct input data to process planning and this new quotation system, the machining time and the costs can be estimated more accurately and easier. The time and cost information is made available for decision making. As a result, the lead time for the quotation process will be shortened and a relatively more attractive price can be quoted to the customers.

Sammanfattning Författaren Kristoffer Larsson har skrivit rapporten tillsammans med grävlastarstillverkaren Huddig i Hudiksvall. Rapporten beskriver nyutvecklingen av Huddigs spakkonsoler. Bakgrunden till examensarbetet är att Huddig har haft kontinuerlig utveckling av sin interiör och hytt men spakkonsolerna har inte följt med i den utvecklingen. Målet med examensarbetet var att ta fram fyra olika prototyper med hänsyn på utformning, handergonomi, knapplacering, trängstyrningsfunktion, rototilt, materialval och tillverkningsmetod. För att författaren skulle få en bild av vad det fanns för kundsynpunkter och vad andra personen som har en relation till Huddig har för synpunkter gjordes en marknadsundersökning. Därefter följde arbetet med att bryta ned arbetet och produkten i delar med olika metoder. Åtta olika konceptförslag skissades fram och slutligen sållades sex olika delar från koncepten fram. En grupp från Huddig och författaren Kristoffer Larsson tyckte dessa delar var bäst lämpade att gå vidare med. De delar som gick vidare var: − Konisk underdel − Kantig form − Dubbla rader med knappar på vänster konsol − Utåtlutande trängstyrning − Fram/back utåtlutande − Tvåhandsgrepp för trängstyrningen − Placering av stödbensreglage Utifrån dessa kommentarer och synpunkter på de framsållade koncepten skissade författaren fram fyra koncept som valdes att göras prototyper av. Skälet till att prototyper valdes att tillverkas var att det är svårt att känna och testa om ett koncept verkligen fungerar eller inte genom att bara kolla på en skiss. Målet med examensarbetet var att generera fram unika koncept men även att tillverka prototyper av dem, vilket uppnåddes. Utifrån resultat av denna rapport och prototyperna kan Huddig fortsätta att utveckla spakkonsolerna till en genomtänkt och smart lösning. / Abstract The author Kristoffer Larsson wrote this examinations paper for the excavator loader company Huddig AB in Hudiksvall. The subject for this bachelor’s thesis is development of joystick pads at Huddig. The background for the bachelor's thesis is that Huddig have been during the last years developed and redesigning the interior of the cabin. The problem is that the joystick brackets haven’t followed the same development. The goal with this bachelor's thesis is to develop and manufacture four prototypes with consideration on design, ergonomics, bottom positions, control of steering, rototilt, choice of material and manufacturing method. To get a picture of what the drivers want and theirs aspect of the development of the joysticks pads the author did a market research with Huddigs customers. After the market research was done some methods and functions solving methods was used to break down the product to different functions. Eight different concepts were generated and the finial concepts were selected of a group from Huddig and Kristoffer Larsson. They selected the concepts because they taught that they were best suited to manufacture prototypes of. These are the subjects of the concepts: − Conic underpart − Angular design − Double rows with bottoms at left bracket − Tilted steering control − Tilted transport direction shifter − Two hand grip for steering − Placement of hydraulic lifters From these comments and aspects the author drew four sketches to have as guidelines for the prototypes. The reason to make prototypes was that it is hard to anticipate if a concept works in the real life based from a sketch. The goal with this bachelor's thesis was to design and manufacture innovated concepts which have been done. From the result of the bachelor's thesis Huddig can use it to continue to develop the joystick brackets to a successful product.