woodworking joints
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Woodworking Joints. Joinery. Joinery is the part of Woodworking that involves joining pieces of wood together Some require fasteners, adhesives. Types of Wood Joints Butt Joint. The simple butt joint is most commonly used. - PowerPoint PPT PresentationTRANSCRIPT
Woodworking Joints
Joinery
• Joinery is the part of Woodworking that involves joining pieces of wood together
• Some require fasteners, adhesives
Types of Wood JointsButt Joint
• The simple butt joint is most commonly used.
• This joint is formed by nailing or screwing the end of one piece of wood to the end of the other.
• While this is simple, fast and effective, the butt joint leaves the heads of the screws or nails exposed.
• Used in cabinet making or Construction framing
• The dowel joint is basically the same as the butt joint except dowels are used to hold the two pieces of wood together instead of screws and nails
• Construct blind dowel joints by drilling the holes only partway into each piece of wood. Then drive the dowels into these holes and glue them into position.
• The dowels are not always visible.
Types of Wood JointsDowel Joint
• The Lap Joint is made by sawing halfway through each piece of wood
• The Lap Joint provides a great deal of strength, but the heads of the nails, screws are still exposed.
• Used in Cabinet making
Types of Wood JointsLap Joint
• This Wood Joint is simple and strong. Due to this, it is commonly used with other materials besides wood.
• To form this joint, saw a slot into one piece of wood. The end of the other piece of wood is then notched out to fit the slot in the first piece.
• The wood joint is then glued together.
• Used in furniture making
Types of Wood JointsMortise & Tenon
• The conventional mitre joint is widely used for making corners in various types of woodwork
• This Wood Joint is a finish joint and not a strong joint. Therefore it is not recommended where the joint is subject to excessive weight or unusual strain.
Types of Wood JointsMitre Joint
• A simple wood joint, in which the ends of boards are joined at right angles by removing a portion of one board’s thickness to accommodate another board.
• In addition to increasing the glue surface, the rabbet also provides support and alignment for the two pieces.
• Used for small scale structural applications: small boxes, wall cabinets, etc.
Types of Wood JointsRabbet Joint
• To make a Dado Joint, cut a slot into one piece of wood to match the end of the other.
• The dado joint is much stronger than the butt joint and creates a more professional appearance.
• It can be used horizontally to support shelves on a bookcase or vertically to hold partitions.
Types of Wood JointsDado Joint
• This wood joint is noted for its resistance to being pulled apart (tensile strength).
• The dovetail joint is commonly used to join the sides of a drawer to the front.
• A series of pins cut into one board and tails into the second board form the joint.
• Once glued, a wooden dovetail joint requires no mechanical fasteners.
Types of Wood JointsDovetail Joint
Summary of Wood Joints
Wood Joints
Name: Lap Joint
Strength: Strength of Joint
Weakness: Fasteners are shown
Name: Mitre Joint
Strength: Decorative Joint
Weakness: No strength to joint
Name: Dovetail Joint
Strength: Strength
Weakness: Setup time to create
Name: Dowel Joint
Strength: Fasteners can be hidden
Weakness: Setup time to create
Name: Butt Joint
Strength: Simple/Fast
Weakness: Fasteners are shown
Name: Dado Joint
Strength: Strength/Professional
Weakness: Setup time to create
Name: Rabbet Joint
Strength: Simple/Provides support
Weakness: End grain exposed
Name: Mortise & Tenon
Strength: Strength/Appearance
Weakness: Setup time to create
WOOD Joints
Careful planning, measuring and cutting result in attractive functional wood joints.