Journal
INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY
Volume 96, Issue 5-8, Pages 2943-2951Publisher
SPRINGER LONDON LTD
DOI: 10.1007/s00170-018-1810-7
Keywords
Composites machining; Temperature-dependent properties; Drilling area temperature; Interface properties; Ductile and brittle deformation
Funding
- Fundamental Research Funds for the Central Universities [xjj201760]
Ask authors/readers for more resources
The aim of this study was to investigate the influence of drilling area temperature on the material properties and quality of machined carbon fiber reinforced polymer (CFRP) composites. For this purpose, an epoxy resin matrix CFRP composite was chosen and tested under carefully designed temperature-controlled drilling experiments using a climatic chamber. The results show that the optimal range of drilling area temperatures is lower than the lower limit of the glass transition zone temperature (T (0)) of the CFRP composite and higher than the upper limit for brittle deformation (T (b) ) of the resin. The reason for this is that when the drilling area temperature is higher than T (0), the interfacial shear strength (IFSS) and anti-deformation capacity of the CFRP composite are poor, which leads to surface roughness and a large amount of exit delamination damage. For drilling area temperatures lower than T (b) , the CFRP becomes more brittle leading to a substantial increase in drilling thrust force, thereby increasing the probability of exit delamination damage. By solely maintaining the drilling area temperature between T (0) and T (b) , the interlaminar fracture toughness, anti-deformation capacity, and IFSS of the composite can be increased, thereby decreasing the probability of drilling damage.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available