Laser-assisted Manufacturing of CBN-contained grinding tools

Pulsed Laser Assisted Micromilling for Die/Mold Manufacturing

Laser assisted machining is an alternative to conventional machining of hard and/or difficult-to-process materials which involves pre-heating of a focused area with a laser beam over the surface of the workpiece to cause localized thermal softening along the path of the cutting action. The main advantage that laser assisted machining has over conventional machining is the increased material rem...

The Development of an Open Architecture Control System for CBN High Speed Grinding

J. of the Braz. Soc. of Mech. Sci. & Eng. Copyright © 2004 by ABCM January-March 2004, Vol. XXVI, No. 1 / 51 E. Jannone da Silva, M. Biffi and J. F. G. de Oliveira University of São Paulo – USP São Carlos Engineering School – EESC 13560-250 São Carlos, SP. Brazil [email protected] [email protected] [email protected] The Development of an Open Architecture Control System for CBN High Speed Gri...

Ultrasonic assisted creep feed grinding of Inconel

The paper details the effects of depth of cut and vibration amplitude when ultrasonic assisted (US) creep feed grinding Inconel 718 with an open structured alumina based wheel. The workpiece was actuated at a constant frequency (~20.5kHz) via a block sonotrode attached to a 1kW piezoelectric transducer-generator system. A full factorial experimental array comprising 12 tests was conducted invol...

A Study on Fracture Behavior of Brazed Multicrystalline CBN Abrasive Grains During Grinding

This paper analyses the fracture behavior of the brazed BCBN grain by comparison with brazed PCBN grain through grinding test of Nickel-based superalloy. The self-sharpening effect is created by timing micro-fracture behavior for BCBN abrasive grains, but by macro-fracture behavior for PCBN abrasive grains. During grinding with brazed BCBN abrasive grains, the material is removed together with ...

Fractal Analysis of Micro Self-Sharpening Phenomenon in Grinding with Cubic Boron Nitride (cBN) Wheels