Value addition to radiata pine wood by thermoforming

Srinivasan N., . and Penneru A.P., . and Jayaraman K., . and Bhattacharyya D., . (2006) Value addition to radiata pine wood by thermoforming. [Proceedings Paper]

Radiata pine Pinus radiata D. Don is the predominant wood species in New Zealand and value addition to the wood has significant commercial attraction. This wood is well suited for furniture joinery and interior architectural products because it has excellent stain and paint finishes. In this study a manufacturing process in which low-value sapwood is pattern formed to create high-value products such as interior decorative panels for ceilings walls or floors has been analysed. In order to understand the mechanism of pattern forming compressive stress relaxation experiments have been carried out which eventually have aided in understanding the time dependent viscoelastic behaviour with respect to spring-back and micro structural changes. Further a novel concept of thermoforming veneers into profiles has been investigated to extend the applications of veneers which are generally used as surface coverings. The formability characteristics of veneers have been investigated by conducting single curvature vee-bending and matched die forming as a prelude to eventual therforming into profiles. It is important for the manufacturer to know the formability characteristics of their product so that a compensatory tool can be designed for producing the required geometry. Kinematic grid strain analyses have been carried out to evaluate the macr-micro strains due to both bulk forming and sheet forming of wood.

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Abstract

Radiata pine Pinus radiata D. Don is the predominant wood species in New Zealand and value addition to the wood has significant commercial attraction. This wood is well suited for furniture joinery and interior architectural products because it has excellent stain and paint finishes. In this study a manufacturing process in which low-value sapwood is pattern formed to create high-value products such as interior decorative panels for ceilings walls or floors has been analysed. In order to understand the mechanism of pattern forming compressive stress relaxation experiments have been carried out which eventually have aided in understanding the time dependent viscoelastic behaviour with respect to spring-back and micro structural changes. Further a novel concept of thermoforming veneers into profiles has been investigated to extend the applications of veneers which are generally used as surface coverings. The formability characteristics of veneers have been investigated by conducting single curvature vee-bending and matched die forming as a prelude to eventual therforming into profiles. It is important for the manufacturer to know the formability characteristics of their product so that a compensatory tool can be designed for producing the required geometry. Kinematic grid strain analyses have been carried out to evaluate the macr-micro strains due to both bulk forming and sheet forming of wood.

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Item Type:	Proceedings Paper
Additional Information:	7 ills. 1 table. 20 refs.
AGROVOC Term:	PINUS
AGROVOC Term:	VENEERS
AGROVOC Term:	STRESS
Geographical Term:	MALAYSIA
Depositing User:	Ms. Norfaezah Khomsan
Last Modified:	24 Apr 2025 05:28
URI:	http://webagris.upm.edu.my/id/eprint/16930

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