Many researchers have conducted studies at ameliorating checking in wood by using kerfing (Graham and Estep 1966; Heising and Graham 1976; Ruddick and Ross 1979; Ruddick 1981, 1988; Morrell 1990; Evans et al.
The effects of different kerfing and center-boring treatments on the checking of ACQ treated pine posts exposed to the weather.
Effect of kerfing on preventing the surface check and reducing inner decay risk in sugi post.
Multiple
kerfing can be done quickly and efficiently on your CNC machine with a combination of the Benz heavy-duty, single-sided, right-angle head, MONO and a set of
kerfing blades from Super Thin Saws.
In this study, conventional kiln-drying was utilized with the special treatments of center boring and kerfing applied to the timbers.
And the average length and width of these surface checks was reduced by as much as 20 to more than 50 percent with timber kerfing (Table 5).
The solid specimens, both with and without kerfing, had similar final MC with both kiln schedules 1 and 2 (Table 6).
The kerfs (incision) in both face and edge members were made with a DeWalt plate-joint
kerfing tool, fixed with a 6-tooth, carbide-tipped, 101.6-mm (4-in) diameter blade with a 3.937-mm-(0.155-in-) thick kerf.
Observations made during the drying process, however, suggested that kerfing provided little added drying benefit.
This can only be done if the impact of kerfing is deemed insignificant.
There is interest in Australia in using kerfing and center boring to reduce the checking of preservative-treated posts, but information to optimize such treatments for radiata and slash pine posts is unavailable.
Treatments, such as kerfing, that physically modify the circumference of roundwood, may relieve drying stresses and reduce the severity of checking in preservative-treated posts and poles [2,4,5,7,8-10].