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CAD toolbox for insert design
2006 (English)Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The Sandvik Coromant division of Sandvik Group produces and sells products for metalworking applications. Coromant is a leading manufacturer of cemented carbide tools for turning, milling and drilling. The insert (cemented carbide) is the part of the tool that does the actual cutting in the workpiece. The thesis assignment was to develop a CAD Toolbox available to insert designers in UGS NX3 CAD-system at Sandvik Coromant. It could contain for instance geometry or help programs or a combination of them. The main purposes with the Toolbox should be to facilitate the designer’s daily work, maintain standard and to integrate engineering knowledge. The thesis work was carried out at Sandvik Coromant, CTDP department in Sandviken, Sweden. Part of the project task was to find out what the Toolbox should be filled with in the future and to create the first object in the Toolbox. The chosen example object was the Wiper Cutting Edge, which is a patented insert nose configuration with several connected radii after each other, providing better workpiece surface finish or increased productivity. To find out the designers needs and therefore what objects to add in the Toolbox a survey was conducted at the Design Insert department at Sandvik Coromant. A questionnaire was handed out to the designers and the answers generated a list of widely different objects, for example ready NX3 drawing templates. A number of NX3 functions that might be useful in the Toolbox were tested and evaluated in the thesis, e.g. User Interface Styler, User Defined Feature (UDF) and Knowledge Fusion (KF). KF is a Knowledge Based Engineering application within UGS NX3, which can enable rules controlling the user when designing. To evaluate the different functions a Wiper NX3 sketch was created meeting the demands from the insert designers and thesis assignment. One stated demand was that the Toolbox has to be compatible with Teamcenter Engineering, which is a Product Lifecycle Management solution from UGS. The final selected Wiper Object solution was Knowledge Fusion enabled UDF’s with added Open C API-functions. Among the advantages with the KF enabled UDF concept compared to other solutions are that a new NX3 dialog window can be connected to the UDF and that programming rules can evaluate dialog input data and give interactive feedback to the user. Depending on type of Toolbox object the application technique in NX3 could vary. Sometimes standalone UDF’s are advantageous and sometimes KF could be beneficial to use together with a UDF. The Toolbox objects are accessed through a CAD Toolbox icon toolbar or a CAD Toolbox menu inside NX3.

Place, publisher, year, edition, pages
Keyword [en]
Keyword [sv]
URN: urn:nbn:se:ltu:diva-43166ISRN: LTU-EX--06/142--SELocal ID: 10fe5e24-2af9-4b04-82fd-44a7ab5daef1OAI: diva2:1016395
Subject / course
Student thesis, at least 30 credits
Educational program
Mechanical Engineering, master's level
Validerat; 20101217 (root)Available from: 2016-10-04 Created: 2016-10-04Bibliographically approved

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