In order to figure out the effect of tool wear on the material removal process in bonnet polishing, an experimental study based on the comparison of removal characteristics of bonnet tools with various wear conditions is presented. Before the experiments, the tool surfaces were measured using a digital microscope, and it revealed that not only the surface contour but also the surface topography were changed by tool wear. For this reason, a preprocessing, i.e., a uniformity controlling method for the spot size, was proposed and validated to keep the spot size constant using static stress sensor. Subsequently, the comparative experiments were conducted, and it was indicated that along with the increase of the wear degree of the bonnet tool, the removal shape changed and the peak removal depth, peak removal in unit time, and removal volume reduced significantly, but the roughness of the polished surface becomes better. Based on the results and the analysis, we deduced that the probably causation for the above phenomenon is the variation of the friction between the workpiece and bonnet tool, because of the alteration of the tool surface topography brought by tool wear. Consequently, the forces in the polishing process were measured using a 3-component dynamometer, and the friction coefficient was calculated. The results showed that the variation trend of the friction coefficient is similar to that of the removal volume, i.e., the removal volume and the friction coefficient of the mild wear tool are basically the same to the new tool, but apparently larger than the severe wear tool, which demonstrates that the reduction of the friction coefficient by tool wear is one of the most important reasons for the decrease of the removal efficiency.
The International Journal of Advanced Manufacturing Technology – Springer Journals
Published: Jan 27, 2017
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera