Influence of hole diameter, workpiece thickness, and tool surface condition on machinability of CFRP composites in orbital drilling: a case of workpiece rotation

Carbon fiber-reinforced polymer (CFRP) composites are considered as difficult-to-machine materials. Due to good strength to weight ratio and comparatively light weight than metallic alloys, their usage in aerospace industry is increasing where drilling is primary machining process for joining of com...

Full description

Saved in:
Bibliographic Details
Published in:International journal of advanced manufacturing technology 2019-08, Vol.103 (5-8), p.2007-2015
Main Authors: Ahmad, Nazir, Khan, Sarmad Ali, Raza, Syed Farhan
Format: Article
Language:English
Subjects:
Aerospace industry
CAE) and Design
Carbon fiber reinforced plastics
Computer-Aided Engineering (CAD
Cutting tools
Diameters
Drilling
Engineering
Error reduction
Fiber composites
Fiber reinforced polymers
Industrial and Production Engineering
Literature reviews
Machinability
Machining
Mechanical Engineering
Media Management
Orbital drilling
Original Article
Polymer matrix composites
Rotation
Strength to weight ratio
Surface roughness
Thickness
Tool wear
Weight reduction
Workpieces
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Carbon fiber-reinforced polymer (CFRP) composites are considered as difficult-to-machine materials. Due to good strength to weight ratio and comparatively light weight than metallic alloys, their usage in aerospace industry is increasing where drilling is primary machining process for joining of components. Material removal using drilling process in CFRP composites is challenging due to its abrasive nature together with certain problems such as matrix burn out and uncut fibers etc. The advantages associated with orbital drilling over conventional drilling technique are now established. Literature review in orbital drilling of CFRP composites revealed that published data is limited to geometrical and analytical modeling while loading a cutting tool in rotation as well as in orbital motion. In the current work, orbital drilling (OD) is performed by rotating the workpiece in an orbit instead of cutting tool. Cutting tool is used for spindle speed only. Thickness of the workpiece and tool surface condition was studied at two levels, i.e., 6 mm and 8 mm when employing coated and uncoated cutting tools. Holes of three different diameters of 8, 10, and 12 mm were drilled. Tool wear, workpiece surface roughness, and diametric error were reduced due to less loading on the cutting tool. Performance of coated tool was found to be better than its uncoated counterparts on all output responses.
ISSN:0268-3768
1433-3015
DOI:10.1007/s00170-019-03713-2