| 1. |
- Das, Kallol, et al.
(författare)
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Effect of tool wear on quality in drilling of titanium alloy Ti6Al4V, Part II : Microstructure and Microhardness
- 2017
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Ingår i: High Speed Machining. - Warsaw, Poland : De Gruyter Open. - 2299-3975. ; 3:1, s. 11-22
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Tidskriftsartikel (refereegranskat)abstract
- Drilling of Ti6Al4V with worn tools can introduce superficial and easily measured features such as increase of cutting forces, entry and exit burrs and surface quality issues and defects. Such issues were presented in the part I of this paper. In part II, subsurface quality alterations,such as changes of the microstructure and microhardness variation is considered by preparing metallographic sections and measurement, mapping of the depth of grain deformation, and microhardness in these sections. Drastic changes in the microstructure and microhardness were found in sections drilled with drills with large wear lands, particularly in the dry cutting tests. These measurements emphasize the importance of detection of tool wear and ensuring coolant flow in drilling of holes in titanium components.
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| 2. |
- Eynian, Mahdi, 1980-, et al.
(författare)
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Effect of tool wear on quality in drilling of titanium alloy Ti6Al4V, Part I : Cutting Forces, Burr Formation, Surface Quality and Defects
- 2017
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Ingår i: High speed machining. - Warsaw, Poland : De Gruyter Open. - 2299-3975. ; 3:1, s. 1-10
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Tidskriftsartikel (refereegranskat)abstract
- Titanium's Ti6Al4V, alloy is an important material with a wide range of applications in the aerospace industry.Due to its high strength, machining this material for desired quality at high material removal rate is challenging and may lead to high tool wear rate. As a result,this material may be machined with worn tools and the effects of tool wear on machining quality need to be investigated.In this experimental paper, it is shown how drills of various wear levels affect the cutting forces, surface quality and burr formation. Furthermore, it is shown that high cutting forces and high plastic deformation, along with high temperatures that arise in cutting with worn tools may lead to initiation of microscopic cracks in the workpiece material in proximity of the drilling zone.
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| 3. |
- Promie, Ahsan Rajib, et al.
(författare)
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Cellulose-Based Bioadhesive for Wood-Based Composite Applications
- 2023
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Ingår i: Cellulose. - : CRC Press. - 9781003358084 ; , s. 163-174, s. 163-174
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Bokkapitel (övrigt vetenskapligt/konstnärligt)abstract
- The fabrication and use of biocomposites are impressive innovations that can replace existing nonbiodegradable petroleum-based substances. Cellulose is an organic polymer with a wide range of compounds and applications. Nowadays, sustainable organic resource-based cellulosic biopolymers are significant components in the production of green adhesives. Additionally, biocomposites made from cellulose-based adhesives have outstanding biocompatibility, light weight, biodegradability, significant chemically modifying capacity, and eco-friendliness. Successful applications of cellulose-based adhesives include the field of medicine delivery, tissue engineering, and wound dressing. This adhesive has a broad range of applications in diverse field of biomedical engineering and wood industries. The nanoscale cellulose-based biocomposites of natural origin are setting the pace in this remarkable surge of innovation. In this chapter, cellulose is examined as a high-performance green adhesive for wood industries with no negative environmental effects and an emphasis on the numerous current applications and promising foreseeable future developments.
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