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Guo, Xiaolei
Publications (9 of 9) Show all publications
Zhu, Z., Buck, D., Guo, X., Ekevad, M. & Cao, P. (2019). Performance of stone-plastic composites with different mix ratios during orthogonal cutting. Materials Express, 9(7), 749-756
Open this publication in new window or tab >>Performance of stone-plastic composites with different mix ratios during orthogonal cutting
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2019 (English)In: Materials Express, ISSN 2158-5849, Vol. 9, no 7, p. 749-756Article in journal (Refereed) Published
Place, publisher, year, edition, pages
American Scientific Publishers, 2019
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
urn:nbn:se:ltu:diva-76594 (URN)10.1166/mex.2019.1557 (DOI)
Note

Validerad;2019;Nivå 2;2019-11-15 (johcin)

Available from: 2019-11-04 Created: 2019-11-04 Last updated: 2020-02-18Bibliographically approved
Li, R., Cao, P., Guo, X., Futang, J., Ekevad, M. & Wang, X. (. (2015). A Novel Sawing Method for Small-Diameter Log (ed.). Wood research, 60(2), 293-300
Open this publication in new window or tab >>A Novel Sawing Method for Small-Diameter Log
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2015 (English)In: Wood research, ISSN 1336-4561, Vol. 60, no 2, p. 293-300Article in journal (Refereed) Published
Abstract [en]

The commercial feasibility of sawmilling mainly depends on the expected productionyield. At the same time, the choice of sawing method is one of primary factors affecting yield.Therefore, choosing a reasonable sawing method is also necessary in small-diameter logs sawingprocess. In this study, a novel sawing method was proposed, and a comparison was made betweenthe volume yield for the most common sawing method in China, and the yield produced by anovel sawing method. This study shows that hexagon sawing give higher yield than the othersawing methods. The mean yield for the whole diameter range is: 82.7 % for hexagon sawing,53.3 % for live sawing, 56.7 % for hexagon sawing, 63.2 % for hexagon sawing.

National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
urn:nbn:se:ltu:diva-9001 (URN)78ea04aa-55ed-4a1a-8fac-9646a95e70a1 (Local ID)78ea04aa-55ed-4a1a-8fac-9646a95e70a1 (Archive number)78ea04aa-55ed-4a1a-8fac-9646a95e70a1 (OAI)
Note

Validerad; 2015; Nivå 2; 20150129 (matse)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Guo, X., Li, R., Cao, P., Ekevad, M., Cristovao, L., Marklund, B. & Grönlund, A. (2015). Effect of average chip thickness and cutting speed on cutting forces and surface roughness during peripheral up milling of wood flour/polyvenyl chloride composite (ed.). Wood research, 60(1), 147-156
Open this publication in new window or tab >>Effect of average chip thickness and cutting speed on cutting forces and surface roughness during peripheral up milling of wood flour/polyvenyl chloride composite
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2015 (English)In: Wood research, ISSN 1336-4561, Vol. 60, no 1, p. 147-156Article in journal (Refereed) Published
Abstract [en]

Wood flour/polyvinyl chloride composite (WFPVCC) is a kind of composite material that, over the years, is becoming more popular in constructions applications. In this work, cutting forces and machined surface roughness were studied during peripheral up milling of WFPVCC under different average chip thickness which was obtained by adjusting rotation speed and feed rate at both high and low speed cutting conditions. The results indicated that cutting forces components, parallel force (F-x) and normal force (F-y) greatly varied during the cutting process. Maximum F-x, maximum F-y and surface roughness increased with the increase of average chip thickness. Maximum F-x and maximum F-y at high speed cutting conditions were lower than that at low speed cutting conditions at a same average chip thickness. The machined surface roughness at high speed cutting conditions was better than that at low speed cutting conditions at a same average chip thickness. When meeting the requirement of certain surface roughness, higher cutting speed can allow higher chip thickness and then decrease the tool wear than lower speed cutting condition. Maximum negative F-y had great impact in machined surface roughness. Machined surface roughness increased with the increase of maximum negative F-y. Thus, high speed cutting conditions not only increase the machining productivity, but also decrease machined surface roughness during the peripheral up milling of WFPVCC

National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
urn:nbn:se:ltu:diva-8970 (URN)7863da3d-6e30-4ff2-9909-941a81f4f331 (Local ID)7863da3d-6e30-4ff2-9909-941a81f4f331 (Archive number)7863da3d-6e30-4ff2-9909-941a81f4f331 (OAI)
Note

Validerad; 2015; Nivå 2; 20150410 (andbra)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Li, R., Ekevad, M., Guo, X., Ding, J. & Cao, P. (2015). Effect of Pressure, Feed Rate, and Abrasive Mass Flow Rate on Water Jet Cutting Efficiency When Cutting Recombinant Bamboo (ed.). BioResources, 10(1), 499-509
Open this publication in new window or tab >>Effect of Pressure, Feed Rate, and Abrasive Mass Flow Rate on Water Jet Cutting Efficiency When Cutting Recombinant Bamboo
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2015 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 10, no 1, p. 499-509Article in journal (Refereed) Published
Abstract [en]

Recombinant bamboo with a thickness of 15 mm was drilled on a CNC machine. The process parameters considered were spindle speed, feed rate, and diameter of the drill, and the response parameters were thrust force and torque. Mathematical models were developed to establish the relationship between the process parameters and the response parameters. The results showed that the main influence on thrust force came from spindle speed and feed rate. High spindle speed with low feed rate was a combination that minimized the thrust force. The process parameters that have a major effect on torque are the diameter of the drill and the spindle speed.

National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
urn:nbn:se:ltu:diva-13989 (URN)d4f8fec8-f0ae-40aa-9814-1d0d87a39743 (Local ID)d4f8fec8-f0ae-40aa-9814-1d0d87a39743 (Archive number)d4f8fec8-f0ae-40aa-9814-1d0d87a39743 (OAI)
Note

Validerad; 2015; Nivå 2; 20150129 (matse)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Li, R., Guo, X., Ekevad, M., Marklund, B. & Cao, P. (2015). Investigation of Glueline Shear Strength of Pine Wood Bonded with PVAc by Response Surface Methodology (ed.). BioResources, 10(3), 3831-3838
Open this publication in new window or tab >>Investigation of Glueline Shear Strength of Pine Wood Bonded with PVAc by Response Surface Methodology
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2015 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 10, no 3, p. 3831-3838Article in journal (Refereed) Published
National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
urn:nbn:se:ltu:diva-5355 (URN)10.15376/biores.10.3.3831-3838 (DOI)2-s2.0-85010702924 (Scopus ID)3717b15d-d1af-4451-a27b-3b351e58778f (Local ID)3717b15d-d1af-4451-a27b-3b351e58778f (Archive number)3717b15d-d1af-4451-a27b-3b351e58778f (OAI)
Note

Validerad; 2015; Nivå 2; 20150506 (matse)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Li, R., Ekevad, M., Guo, X., Cao, P., Wang, J., Chen, Q. & Xue, H. (2015). Pressure, Feed Rate, and Abrasive Mass Flow Rate Influence on Surface Roughness for Recombinant Bamboo Abrasive Water Jet Cutting (ed.). BioResources, 10(2), 1998-2008
Open this publication in new window or tab >>Pressure, Feed Rate, and Abrasive Mass Flow Rate Influence on Surface Roughness for Recombinant Bamboo Abrasive Water Jet Cutting
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2015 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 10, no 2, p. 1998-2008Article in journal (Refereed) Published
Abstract [en]

The effects of pressure, feed rate, and abrasive mass flow rate on surface roughness were investigated during abrasive water cutting of recombinant bamboo. Two different thicknesses (10 mm and 15 mm) of recombinant bamboo were cut in the longitudinal and transversal directions by abrasive water jet. All experiments were arranged using response surface methodology. The parameter Ra was selected to represent the surface roughness. The value of Ra increased with an increase in feed rate and abrasive mass flow rate, but decreased with an increase in pressure. The surface roughness was lower when cutting the fiber longitudinally than when cutting transversally.

National Category
Other Mechanical Engineering
Research subject
Wood Science and Engineering
Identifiers
urn:nbn:se:ltu:diva-5749 (URN)3ee6051e-4c72-4a86-9a09-ea652c698613 (Local ID)3ee6051e-4c72-4a86-9a09-ea652c698613 (Archive number)3ee6051e-4c72-4a86-9a09-ea652c698613 (OAI)
Note

Validerad; 2015; Nivå 2; 20150205 (matse)

Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Guo, X., Ekevad, M., Marklund, B., Li, R., Cao, P. & Grönlund, A. (2014). Cutting Forces and Chip Morphology during Wood Plastic Composites Orthogonal Cutting (ed.). Paper presented at . BioResources, 9(2), 2090-2106
Open this publication in new window or tab >>Cutting Forces and Chip Morphology during Wood Plastic Composites Orthogonal Cutting
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2014 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 9, no 2, p. 2090-2106Article in journal (Refereed) Published
Keywords
Materials science - Other processing/assembly, wood plastic composites, cutting force, chip morphology, chip thickness, rake angle, edge radius, Teknisk materialvetenskap - Övrig bearbetning/sammanfogning
National Category
Other Mechanical Engineering
Research subject
Wood Technology
Identifiers
urn:nbn:se:ltu:diva-7955 (URN)665348cc-3dc2-425b-885d-0cc0894c72a3 (Local ID)665348cc-3dc2-425b-885d-0cc0894c72a3 (Archive number)665348cc-3dc2-425b-885d-0cc0894c72a3 (OAI)
Note
Validerad; 2014; 20140225 (matse)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Li, R., Ekevad, M., Wang, J., Guo, X. & Cao, P. (2014). Testing and Modeling of Thrust Force and Torque in Drilling Recombinant Bamboo (ed.). Paper presented at . BioResources, 9(4), 7326-7335
Open this publication in new window or tab >>Testing and Modeling of Thrust Force and Torque in Drilling Recombinant Bamboo
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2014 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 9, no 4, p. 7326-7335Article in journal (Refereed) Published
Keywords
Materials science - Functional materials, Teknisk materialvetenskap - Funktionella material
National Category
Other Mechanical Engineering
Research subject
Wood Technology; Smart machines and materials (AERI)
Identifiers
urn:nbn:se:ltu:diva-12308 (URN)b6c57f4a-083d-40b9-929a-d3e0165e72ff (Local ID)b6c57f4a-083d-40b9-929a-d3e0165e72ff (Archive number)b6c57f4a-083d-40b9-929a-d3e0165e72ff (OAI)
Note
Validerad; 2014; 20141014 (matse)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
Guo, X., Ekevad, M., Grönlund, A., Marklund, B. & Cao, P. (2014). Tool wear and machined surface roughness during wood flour/polyethylene composite peripheral upmilling using cemented tungsten carbide grades (ed.). Paper presented at . BioResources, 9(3), 3779-3791
Open this publication in new window or tab >>Tool wear and machined surface roughness during wood flour/polyethylene composite peripheral upmilling using cemented tungsten carbide grades
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2014 (English)In: BioResources, ISSN 1930-2126, E-ISSN 1930-2126, Vol. 9, no 3, p. 3779-3791Article in journal (Refereed) Published
Abstract [en]

The effect of sharpness angle on tool wear and the effect of tool wear on machined surface roughness were investigated in wood flour/polyethylene composite (WFPEC) peripheral up-milling using cemented tungsten carbide (TC) tools. It was shown that nose width and edge recession increased with increasing feeding length. During the milling process, the wear of the nose width was smallest for the tool with a sharpness angle of 45°, followed by tools with sharpness angles of 55° and 65°. The wear of edge recession was highest for the tool with a sharpness angle of 45°, followed by tools with sharpness angles of 55° and 65°. The nose width increased with increasing sharpness angle, the edge recession decreased with increasing sharpness angle, and the machined surface roughness increased with increasing sharpness angle after a feeding length of 40 m. The nose width had a positive effect on the machined surface roughness, and the machined surface roughness increased with increasing nose width. The edge recession had little effect on the machined surface roughness. The clearance face roughness of the worn tool increased with increasing sharpness angle. The analysis of the SEM micrographs and EDS of the clearance face of the worn tool showed that the wear mechanisms of the cemented tungsten carbide tool were oxidation and abrasion in the range tested during cutting. Thus, a slight wear of the edge recession is gained in exchange for a lower machined surface roughness by decreasing the sharpness angle.

Keywords
Materials science - Other processing/assembly, tool wear, Teknisk materialvetenskap - Övrig bearbetning/sammanfogning
National Category
Other Mechanical Engineering
Research subject
Wood Technology
Identifiers
urn:nbn:se:ltu:diva-14535 (URN)de68546f-846e-4c57-9a0c-517037034d7b (Local ID)de68546f-846e-4c57-9a0c-517037034d7b (Archive number)de68546f-846e-4c57-9a0c-517037034d7b (OAI)
Note
Validerad; 2014; 20140507 (matse)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-24Bibliographically approved
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