A biscuit is added to a mitre joint primarily to increase its strength and improve alignment during assembly.
Enhanced Glue Surface Area
As stated in the reference, "the biscuit cutter excels at cutting slots between the two mitered pieces, offering more surface area for the glue than a typical mitered joint." This increase in surface area significantly improves the bond between the two pieces of wood.
Benefits of Using Biscuits in Mitre Joints:
- Increased Strength: Biscuits reinforce the joint, making it more durable and resistant to stress.
- Improved Alignment: Biscuits help to keep the two pieces of wood aligned correctly during the gluing and clamping process.
- Easier Assembly: They simplify the assembly process, especially for larger or more complex mitre joints.
- Enhanced Glue Adhesion: The biscuit itself absorbs glue and expands, creating a tighter and stronger bond.
