Sökning: "grit shape"

Hittade 4 avhandlingar innehållade orden grit shape.

  1. 1. Development of Multi-grit cBN Grinding Wheel for Crankshaft Grinding

    Författare :Nastja Macerol; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; crankshaft; grinding; wear; grit concentration; grit toughness; grinding wheels; grit size; automotive; grit shape; cubic Boron Nitride;

    Sammanfattning : A crankpin, part of a crankshaft, has a complex profile that is difficult to grind. The process often causes challenges such as excessive heat on the crankpin sidewall and wheel wear on the radius, causing reduced dressing interval. Different solutions were proposed to overcome these challenges, mainly focusing on the process, i.e. LÄS MER

  3. 2. Development of Multi-grit cBN Grinding Wheel for Crankshaft Grinding

    Författare :Nastja Macerol; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; automotive; cBN; grinding; vitrified bond; grit shape; grit concentration; morphology; aspect ratio; crankshaft; grinding wheels;

    Sammanfattning : Crankshaft is a geometrically challenging component to grind. Over the years a number of grinding strategies have been developed to overcome thermal damage issues and excessive wheel wear. Radial and angular plunge processes have been adopted on some of the production machines. Recently a new, temperature-based strategy, has been proposed. LÄS MER

  4. 3. A Study of the Adhesion Strength of Plasma Sprayed Coatings

    Författare :Fouzi Bahbou; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Splat.; Surface roughness; Mechanical anchoring; Grit blasting; Adhesion strength; Protal® process; Fractal analysis; Thermal spraying; Coating; Surface pre-treatment;

    Sammanfattning : Surface preparation prior to thermal spraying is a key factor in ensuring a good adhesion of the coating onto the part to be coated. Surface pre-treatment conditions and methods have mainly been developed experimentally and have changed little over the years. LÄS MER

  5. 4. Modeling and Requirements of the Automated Deburring Process

    Författare :Hamid Nasri; Institutionen för elektro- och informationsteknik; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; robotics; Automation; Force Controlled Grinding; Automated Deburring; Cleaning of Castings; control engineering; Automatiska system; robotteknik; reglerteknik;

    Sammanfattning : An increasing number of robots have been used for the finishing of castings during recent years. This is mainly due to developments to overcome problems that restricted their use during the past decade. LÄS MER