Cutting forces and chip formation revisited based on orthogonal cutting of Scots pine
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Zhaolong Zhu
und
Nanfeng Zhu
Abstract
The objective of this study was to understand better the cutting forces and chip formation of Scots pine (Pinus sylvestris L.) with different moisture contents (MCs) and machined in different cutting directions. To that end, an orthogonal cutting experiment was designed, in which Scots pine was intermittently machined using a tungsten carbide tool to produce chips. The cutting forces were measured and the chip shapes were quantitatively described. Four conclusions can be drawn: (1) with increasing MC, the average cutting forces initially decreased and then stabilized, while the angle between the direction of the main and the resultant force continuously decreased. (2) The average cutting forces in the 90°–0° cutting direction were lower than the same forces in the 90°–90° cutting direction. (3) During machining, the dynamic cutting forces fluctuated less in the 90°–0° case. However, the dynamic feeding forces showed a decreasing trend in both the 90°–0° and the 90°–90° cases. (4) The process applied produced granule chips and flow chips, while less curly flow chips with a higher radius of curvature were more easily produced from samples with high MCs in the 90°–0° cutting direction.
Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: The authors are grateful for the support from the National Science Foundation of China (Funder Id: 10.13039/501100001809 and Grant Number: 31500480), a project funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD) and a project supported by the Doctorate Fellowship Foundation of Nanjing Forestry University.
Employment or leadership: None declared.
Honorarium: None declared.
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©2019 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Original Articles
- Cutting forces and chip formation revisited based on orthogonal cutting of Scots pine
- Predicting structural timber grade-determining properties using acoustic and density measurements on young Sitka spruce trees and logs
- Natural resistance of eight Brazilian wood species from the region Caatinga determined by an accelerated laboratory decay test against four fungi
- Understanding the effect of weathering on adhesive bonds for wood composites using digital image correlation (DIC)
- Time-dependent ammonia emissions from fumed oak wood determined by micro-chamber/thermal extractor (μCTE) and FTIR-ATR spectroscopy
- Rheology of moso bamboo stem determined by DMA in ethylene glycol
- Carbon nanomaterials based on interpolyelectrolyte complex lignosulfonate-chitosan
- Radical transfer system in the enzymatic dehydrogenative polymerization (DHP formation) of coniferyl alcohol (CA) and three dilignols
- The gene expression and enzymatic activity of pinoresinol-lariciresinol reductase during wood formation in Taiwania cryptomerioides Hayata
- Applicability of chloroplast DNA barcodes for wood identification between Santalum album and its adulterants
- Short Note
- Strength and stiffness of the reaction wood in five Eucalyptus species
Artikel in diesem Heft
- Frontmatter
- Original Articles
- Cutting forces and chip formation revisited based on orthogonal cutting of Scots pine
- Predicting structural timber grade-determining properties using acoustic and density measurements on young Sitka spruce trees and logs
- Natural resistance of eight Brazilian wood species from the region Caatinga determined by an accelerated laboratory decay test against four fungi
- Understanding the effect of weathering on adhesive bonds for wood composites using digital image correlation (DIC)
- Time-dependent ammonia emissions from fumed oak wood determined by micro-chamber/thermal extractor (μCTE) and FTIR-ATR spectroscopy
- Rheology of moso bamboo stem determined by DMA in ethylene glycol
- Carbon nanomaterials based on interpolyelectrolyte complex lignosulfonate-chitosan
- Radical transfer system in the enzymatic dehydrogenative polymerization (DHP formation) of coniferyl alcohol (CA) and three dilignols
- The gene expression and enzymatic activity of pinoresinol-lariciresinol reductase during wood formation in Taiwania cryptomerioides Hayata
- Applicability of chloroplast DNA barcodes for wood identification between Santalum album and its adulterants
- Short Note
- Strength and stiffness of the reaction wood in five Eucalyptus species
