Dowel 직경과 Hole 내경 차이가 소재 및 목질재료로부터의 dowel 인발력에 미치는 영향

• 영문명: Effect of the dowel-hole diameter difference on the withdrawal strength of dowels from solid woods and wood composites
• 발행기관: 한국가구학회
• 저자명: 정우양(Woo Yang Chung)
• 간행물 정보: 『한국가구학회지』한국가구학회지 제1권 제1호, 26~33쪽, 전체 8쪽
• 주제분류: 예술체육 > 미술
• 파일형태: PDF
• 발행일자: 1990.08.30

영문 초록

Wooden dowel is widely used in most furniture manufacturing plants with mass production system. This study and experiment were carried out to get the more detail information on the dowel and designed to investigate the effect of dowel-hole diameter difference on the withdrawal strength in each direction of solid woods (lauan and rubber wood) and wood composites (MDF. PB and plywood). Spiral grooved ramin dowels with the range of 9.85mm to 10.15mm diameter were inserted into 10mm dia. pilot hole and tensioned by Universal testing matchine to compare the withdrawal strength. The main results were as following: 1. In general. withdrawal strength from solid wood exceeded those from wood composites regardless of the size of dowel and withdrawal strength from side grain surface restraining the withdrawing was higher than those from end grain surface in solid. 2. Rubber wood Joint strength deceased with increase of diameter of spiral grooved dowel but lauan with somewhat lower density showed the highest with drawal strength when the diameter of dowel was the largest. vice versa. 3. In wood composite jointing. the withdrawal strength from face alse exceeded those from edge in all types of boards. 4. MDF showed the highest withdrawal strength at the minimum dowel-hole diameter difference both from side and edge surface. 5. Particleboard has inherent weak point of internal delamination during dowel inserting and service. so we need not to make larger dowel than pilot hole. 6. Plywood showed somewhat different joint characteristics from other composites and had the highest withdrawal strength with slender dowel(9.85mm) similar to rubber wood.

목차

1. 서언

2. 實驗設計

3. 材料 및 方法

4. 結果 및 考察

5. 結論

6. 참고문헌

키워드

dowel pilot hole withdrawal strength ramin lauan rubber wood MDF Particleboard plywood spiral grooved dowel side grain face surface edge surface