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Wood Joints

What is today’s topic? Instructions: Use this phone pad diagram as the key to unlocking the topic for today. Example 4 is either G , H , I “843 86742 367 8632947 9663 564687”. Wood Joints. Grade 8. What is Wood joints?.

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Wood Joints

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  1. What is today’s topic?Instructions: Use this phone pad diagram as the key to unlocking the topic for today. Example 4 is either G , H , I “843 86742 367 8632947 9663 564687”

  2. Wood Joints Grade 8

  3. What is Wood joints? Wood joints (Joinery) is a part of woodworking that involves joining together pieces of wood, to create furniture, structures, toys, and other items. Some wood joints employ fasteners, bindings, or adhesives, while others use only wood elements.

  4. When choosing and making an appropriate joint, there are five things to remember: The smallest possible amount of timber should be cut away from the pieces being jointed. Simple joints accurately cut are the best. Each part of the joint has equal strength. The form of the joint allows for the varying strength and movement characteristics of the timber. The bearing surfaces of the joint must be able to transfer the loads across the joint without failure.

  5. Types of joints Woodwork joints can be divided into five basic groups: 1 Lengthening joints 2 Widening joints(glued) 3 Widening joints (dry) 4 Framingjoints 5 Hingedjoints

  6. Lengthening joints Lengthening - end or lengthening joints are used when timber is required in longer lengths than those which occur naturally.

  7. Examples of Lengthening joint

  8. Examples of Lengthening joint

  9. Widening joint (glued) Widening (glued) - the edges of boards are jointed and glued together to increase the width of timber when wide panels are required.

  10. Examples of widening joints (glued)

  11. Examples of widening joints (glued)

  12. Widening joint (dry) Widening (dry)- joints are formed on the board edges which are fitted together dry and secured to a background frame to form large boarded areas such as floors. The function of these joints is to align the edges of the boards, while allowing some movement between the boards as they shrink or swell.

  13. Examples of widening joints (dry)

  14. Framing Joints Framing- these joints are used to hold individual timbers together where they meet when set at an angle to each other and to transfer loads from one member to another without the joint failing.

  15. Examples of Framing joints

  16. Examples of Framing joints

  17. Examples of Framing joints

  18. Hinges Hingesare used when one timber member is required to pivot or turn against another, e.g. doors in door frames, casements in window frames. In the majority of cases ironmongery is used in forming these joints

  19. Examples of Hinges

  20. Summary & Questions • Explain the term wood joints • When making and choosing a joint ,what should you consider? • List the five basic groups of joints and their function. • State two examples of each group of joins

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