We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Strain analysis near the cutting edge in orthogonal cutting of hinoki (Chamaecyparis obtusa) using a digital image correlation method.
- Authors
Matsuda, Yosuke; Fujiwara, Yuko; Fujii, Yoshihisa
- Abstract
A digital image correlation (DIC) method was utilized to measure strain distributed within approximately 0.5 mm of the cutting edge during slow-speed orthogonal cutting of air-dried hinoki (Chamaecyparis obtusa), to clarify the relationships of the strain distribution and cutting conditions, including cutting angle (θ<inline-graphic></inline-graphic>) and depth of cut (d<inline-graphic></inline-graphic>). The strain was measured in 0.04 mm steps, and the measurable minimum strain was approximately 0.08%. Tensile strain of 3% or larger normal to the cutting direction, εy<inline-graphic></inline-graphic>, tended to extend 0.2 mm or further ahead of the tool when θ≤60∘<inline-graphic></inline-graphic> and d≥0.1mm<inline-graphic></inline-graphic>. This tensile εy<inline-graphic></inline-graphic> corresponded to the occurrence of the fore-split in Chip Type I. The tensile εy<inline-graphic></inline-graphic> detected along the path of the cutting edge decreased as θ<inline-graphic></inline-graphic> and/or d<inline-graphic></inline-graphic> decreased. Positive shear strain, γxy<inline-graphic></inline-graphic>, tended to be detected ahead of the tool in Type I. Negative γxy<inline-graphic></inline-graphic> tended to be detected ahead of the tool in Type II and III θ≥70∘,d≥0.05mm<inline-graphic></inline-graphic>. These γxy<inline-graphic></inline-graphic> values were considered to be related to the elongation and shrinkage of the chip. The study confirmed the usability of the DIC method for the evaluation of cutting conditions and also to classify chip formation into chip types.
- Publication
Journal of Wood Science, 2018, Vol 64, Issue 5, p566
- ISSN
1435-0211
- Publication type
Article
- DOI
10.1007/s10086-018-1724-x