General Overview
The wood wrapping is usually defined as malformation that occurs in the wood when the humidity content of the wood gets evenly changed. It happened when one wooden part dries off fastly than the other wooden part like the wooden part that dried off faster causes the stress and then alters the wood shape and that is why the board that has to lie flat gets bent then. Usually, the cupping is the defect in the product that can easily influence the many product varieties like the furnishing items or the musical instruments. Before knowing the different cupping types it is very necessary that the users need to know what causes the wood cupping. The primary reason for the wood building or the shrinkage is the bond between the humidity and the moisture in the air.
Two Easy Ways To Prevent Wood Cupping(Prevention)
When the wood is having the high content of the moisture it gets shrunk the moment it dries off and when the wood is having the low content of the moisture it gets swelled up because of the water it absorbs. There are many factors that easily influence the wood wrapping and some of them can be easily controlled than the other factors. Two of the most common ways of preventing wood cupping are wood grain and sawing techniques. Both of them are mentioned below:
Wood Grain Technique
The wood grain patterns can easily impact the way the wood acts as they easily alter the content of the moisture. The wood that is trimmed from the inner area of the tree is having more stability towards the wrapping or the shrinking effect. The straight grain that is having near about 0.79mm in between the wood grain line usually wraps less than the other wood species.
Sawing Technique
This is the technique that is mainly used in lumber processing and can also impact the wrapping process. If the users understand these factors then they can easily limit down the wrapping risk of the wood items. If in case the board that is having the symmetrical growth rings then they are more prone to getting wrapped than the cup type growth ringed boards. Then the flat-board gets less affected by the wrapping because both the corners of the board are equal distances from the core of the tree. The lack of the saw maintenance can easily impact the word boards as this leads to the thinner edges on the boards than at the center and that can result in the bow-type cupping. The users are also advised not to use the sawed lumber at the grain angles they need to saw the wood grain in a way that it should be parallel with the board corner that can easily help in the prevention of the wood cupping.