LAPPEENRANTA UNIVERSITY OF TECHNOLOGY

LUT School of Energy Systems

DIPLOMA THESIS

Computer Aided Machining of Turbomachine Blades adobe PDF document

Diploma thesis, given in the department council meeting Oct/7/1988. The inspectors were Professor Reino Huovilainen and Assistant Professor Jaakko Larjola, and the supervisor was N/C systems head Alan R. Levine.

Lappeenranta, May 9th. 1988

Kari Höijärvi

Current State of MAX-AB.

Notes to electronic version:

I have lost the TeX source as well as the images, so this copy was scanned from the printed version. Apologies to my English back then: No changes were made: addresses and telephone numbers are out of date and being a non-native English writer, language errors are there for good.

For a casual reader, I recommend starting from abstract on PDF page 4, and from PDF page 15, paper page 1 "INTRODUCTION", then continuing to PFD page 35, paper page 21, chapter 4 "THE BLADE MODEL" or PDF page 49, paper page 35, chapter 5 "MACHINING".

Comments are welcome to kari@hoijarvi.org

        Nov/19/2012
    
        Kari Hoijarvi
        9235 Cherry Brook Lane
        Crestwood, MO 63126
        314-843-6436
    

A few pictures of the test piece. The blade is twisted much more than the real one is to demonstrate grinding very curved surfaces.

impeller front leading edge of the impeller impeller from the shroud down impeller trailing edge

The odd looking dents at the leading edge are not in the design, but a sign error in my program. Just a reminder how a single keystroke can wreck otherwise good work. It got fixed, if you're curious.

impeller close up