Cutting with geometry Defined and Undefined Cutting Edges of Medium Density Fibreboards (MDF)
The objective of this investigation was to determine the cutting process of Medium Density Fibreboards regarding the surface quality especially the behaviour of single fibres and fibres bundles. The observation should give an answer to the issue if fibres and fibres bundles are served at cutting planes or ripped out of the matrix. Cutting tests with geometry defined and undefined cutting edges were conducted. The nature of occurring chips was analysed with nidations in plastic and microtome slices. Additionally MDF specimens were glued with a lamination on a profile wrapping machine to test quality of glue joints and the resulting quality of the wrapped surfaces depending on pre-processing. Different effects occur while cutting MDF. Depending on machining methods or machining parameters, tool wear and panel faces fibres are even cut or fibre bundles are ripped out of the fibre composite. SEM images confirm these findings and show nature of hairy edges. Another effect is orientating fibres during sanding as well as damaging and splitting fibres.
mdf cutting milling sanding surface fibres
Horstmann, Riegel, Scholz
Hochschule Rosenheim, Fakultat fur Holztechnik HochschulstraBe 1, 83024 Rosenheim
国际会议
19th International Wood Machining Seminar(第19届国际木材机械加工研讨会 IWMS19)
南京
英文
122-131
2009-10-21（万方平台首次上网日期，不代表论文的发表时间）