Effect Of Surface Finish On Fatigue Life Of Component
Generally, Surface roughness is one of the factors that affect fatigue-life of a component that cause microscopic stress concentrations that lower the fatigue strength. Surface finish is often of great concern factor because of their impact on product performance. The main purpose of this study i...
Saved in:
| Main Author: | |
|---|---|
| Format: | Monograph |
| Published: |
UTeM
2009
|
| Subjects: | |
| Online Access: | http://library.utem.edu.my:8000/elmu/index.jsp?module=webopac-d&action=fullDisplayRetriever.jsp&szMaterialNo=0000054247 http://library.utem.edu.my:8000/elmu/index.jsp?module=webopac-d&action=fullDisplayRetriever.jsp&szMaterialNo=0000054247 http://eprints.utem.edu.my/3713/1/Effect_Of_Surface_Finish_On_Fatigue_Life_Of_Component_-_24_pages.pdf http://eprints.utem.edu.my/3713/2/Effect_Of_Surface_Finish_On_Fatigue_Life_Of_Component_TA473_.M42_2009.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Generally, Surface roughness is one of the factors that affect fatigue-life of a component
that cause microscopic stress concentrations that lower the fatigue strength. Surface
finish is often of great concern factor because of their impact on product performance.
The main purpose of this study is to investigate the effect of surface finish on fatigue life
of components. In practice, a mechanical part is exposed to a complex, often random,
sequence of loads, large and small. Fatigue is the progressive and localized structural
damage that occurs when a material is subjected to cyclic loading. This study focuses
on the effect of surface finish on fatigue life of components. Work materials have been
studied is AISI 1020 of 68 HRC. Cutting test were conducted on Computer Numerical
Control (CNC) lathe machine model SL-20. The cutting tools used is tungsten carbide
coated by titanium nitride (TiN) and all work material were machined at the different
cutting parameter in order to produce different surface finish. Feed rate used are 0.066,
0.166, and 0.266 with constant cutting speed, Vc = 63 m/min and dept of cut = 0.2mm.
Roughness value (Ra) is taken through by portable surface roughness tester. Evaluation
of the test results indicated that the smooth surface have more long life span. It also
becomes apparent from this studies that feed rate have influence on the surface finish. |
|---|