Name: wood surfacing for smooth, safe lumber
Uploaded: 2024-09-12T16:16:32.000Z
Duration: 1 min 14 s
Channel: JoVE

목재 표면 처리는 더 매끄러운 마감을 달성하고 더 정확한 치수를 보장하며 더 안전하게 취급할 수 있도록 수행됩니다.
나무의 치수는 조미료 과정에서 발생하는 수축을 보상하기 위해 이전에 표면 처리가 수행되기 전에 약간 증가합니다.
조미료 단계에서 발생하는 뒤틀림은 표면 처리를 통해 수정할 수 있습니다.
회전하는 블레이드가 특징인 평면으로 알려진 장비는 표면 처리 과정에서 목재 표면을 매끄럽게 하고 가장자리를 약간 둥글게 만드는 데 사용됩니다.
일반적으로 목재는 4면에 표면이 있습니다. 일반적으로 활엽수는 양면에만 표면이 드러나고 다른 거친 가장자리는 목공이 마무리합니다.
표면이 있는 나무는 일관되게 평탄도를 나타내야 하는 반면, 회전된 물체는 뚜렷한 원형을 나타내야 하며 가장자리는 항상 완벽하게 직선으로 보여야 합니다.
샌딩은 목재 표면을 매끄럽게 하는 데 사용되는 또 다른 일반적인 방법입니다.
더 거친 그릿에서 시작하여 더 부드러운 마무리를 위해 더 미세한 그릿으로 점진적으로 이동하면서 목재 섬유 방향으로 샌딩하는 것이 좋습니다.

목재 표면 처리

Wood Surfacing

목재 표면 처리란 목재 표면을 매끄럽게 하고 치수 정확도를 높이며 안정성을 개선하기 위해 고안된 중요한 마무리 공정입니다. 이 공정은 표면 처리 전에 목재 치수를 약간 늘려서 건조단계에서 발생할 수 있는 수축을 고려합니다. 또한 건조 과정에서 나타날 수 있는 일부 왜곡을 교정하여 바로 잡습니다.

표면 처리 공정에 사용되는 장비는 회전 블레이드가 장착된 판입니다. 이 도구는 목재 표면을 효율적으로 매끄럽게 하고 모서리를 약간 둥글게 만들어, 취급 시 목재의 외관과 안전성을 개선합니다. 목재의 균일성과 평탄성을 보장하기 위해 일반적으로 네 면을 모두 표면 처리합니다. 그러나 경재에는 두 면에만 표면 처리하기도 하며 나머지 거친 모서리는 특정 프로젝트 요구 사항에 따라 마무리됩니다.

제품이 완성되었을 때 일관성이 가장 중요합니다. 표면 처리된 목재는 항상 평평한 표면을 유지해야 합니다. 마찬가지로, 모든 회전 목재 물체는 명확한 둥글림을 보여야 하며 모든 모서리는 완벽하게 직선이어야 합니다. 매끄러운 마감을 얻기 위해 일반적으로 사용되는 또 다른 기술은 샌딩으로, 점차 더 미세한 입자 크기를 사용하는 것을 포함합니다. 샌딩은 항상 목재 섬유 방향으로 수행해야 표면 손상을 방지하고 매끄러운 마감을 보장할 수 있습니다.

이러한 목재 표면 처리 방법으로 목재 제품이 미적으로 만족스러울 뿐만 아니라 건축 및 목공 프로젝트에 대한 정확한 사양을 충족할 수 있습니다.

목재 표면 처리는 더 매끄러운 마감을 달성하고 더 정확한 치수를 보장하며 더 안전하게 취급할 수 있도록 수행됩니다.
나무의 치수는 약간 증가합니다 ...

Education

교육

JoVE Core

Civil Engineering

토목공학

Unit 1

제1단원

Wood

나무

KEY TERMS AND CONCEPTS

주요 용어 및 개념

wood surfacing for smooth, safe lumber

Wood surfacing smooths lumber, improves its size accuracy, and makes it safer to handle. It is a key finishing step in woodworking and construction. The process also helps correct small distortions that can form as wood dries.

Before surfacing, the wood may be sized slightly larger to account for shrinkage during seasoning, which is the drying stage. A plane, a tool with rotating blades, is used to remove material and smooth the surface. The same tool can also round the edges a little, which improves both appearance and safety.

Lumber is usually surfaced on all four sides so the piece is flat and uniform. Hardwoods are often surfaced on only two sides, leaving the remaining rough surfaces for the woodworker to finish as needed. For any surfaced piece, the finished result should be flat. Turned wooden objects should be clearly round, and edges should be straight.

Sanding is another way to create a smooth finish. It uses grit sizes that become finer step by step. Sanding should always follow the direction of the wood fibers to avoid damaging the surface and to leave a smoother result.

Wood Surfacing for Smooth, Safe Lumber

introduction to wood

Wood Structure and Uses in Building

Wood is a construction material made from trees. A tree trunk has several layers. The outside is a protective layer of dead bark. Under that is living bark, then the cambium, then sapwood. As sapwood matures, it becomes heartwood. The pith sits at the center of the trunk. The age of a tree can be read from its growth rings. These rings are concentric bands seen in a trunk cross-section. Wood strength also depends on grain. Grain refers to elongated, tubular cells that run along the length of...

softwoods and hardwoods

Wood Grain in Softwoods and Hardwoods

Softwoods and hardwoods come from different kinds of trees, and their leaf structures and cell makeup help explain how they are used. Softwoods come from cone-bearing trees with needle-like leaves. Hardwoods usually come from trees that shed broad leaves seasonally. Softwoods are made mostly of long cells called tracheids and a smaller number of rays, which are radial cells. This simpler structure gives softwoods a rougher grain. Because of this, they are often used in construction for...

lumber

Lumber Cutting Methods

Lumber is made from logs that are harvested, debarked, and processed into long pieces with a rectangular cross-section. The process starts when an automated saw slices a log into slabs. Those slabs then move on a conveyor belt to smaller saws, where they are cut into square-edged pieces of specific widths. Freshly cut lumber usually has rough surfaces. Its dimensions may also vary slightly from one end to the other. The way wood is cut affects both the lumber’s appearance and how it is used. <br...

structural properties and dimensions of lumber

structural-properties-and-dimensions-of-lumber

Wood Strength Tests and Lumber Sizes

Wood strength depends on how its fibers are aligned along the length of the tree. This alignment gives wood much greater tensile strength along the grain than across it, sometimes up to twenty times higher. Wood also tends to perform better under compression than under tension. Fiber length varies by wood type. Hardwoods have fibers about one twenty-fifth of an inch long. Softwoods have longer fibers that range from one-eighth to one-third of an inch. Laboratory tests help measure how wood...

seasoning of wood

Wood Drying for Stronger Construction

Seasoning of wood is the drying process used to lower and stabilize moisture content before wood is used in construction. Fresh wood can swell when it takes in moisture and contract as it dries. Seasoning helps reduce that movement so the wood stays more stable after it is built into a structure. The main goal is to reach equilibrium moisture content. This is the point where the wood’s moisture level matches the moisture in the surrounding environment. When wood is seasoned properly, it is...

wood surfacing

Wood surfacing smooths lumber, improves its size accuracy, and makes it safer to handle. It is a key finishing step in woodworking and construction. The process also helps correct small distortions that can form as wood dries. Before surfacing, the wood may be sized slightly larger to account for shrinkage during seasoning, which is the drying stage. A plane, a tool with rotating blades, is used to remove material and smooth the surface. The same tool can also round the edges a little, which...

lumber defects

Common Wood Flaws in Lumber

Lumber defects are flaws in wood that can change both its appearance and its strength. These defects come from tree growth and from the way lumber is processed. Knowing the main defects helps explain why some boards are better for construction and manufacturing than others. Some defects begin in the tree itself. Knots form where branches were once attached to the trunk, and knotholes appear when those knots fall out. Decay and insect damage are also natural defects that can weaken wood and...

wood fasteners

Wood Fastener Types and Uses

Wood fasteners connect parts of a wood structure and help keep members in place. The strength of the connection depends mainly on direct bearing between the wood members. Different fasteners are chosen for different jobs and structural needs. Nails are the most common wood fasteners. They are sharp-pointed metal pins that are driven into wood with a hammer or a mechanical nail gun. Nails come in many diameters, head styles, and lengths. Nailing methods also matter. Face nailing places the...

veneer

How Veneer Is Cut and Used

Veneer is a thin sheet of wood that is usually about one-eighth of an inch thick or less. It is made to show the look of wood while using timber more efficiently. Veneer is common in furniture and other finished wood products. One common way to make veneer is rotary cutting. In this method, a log is mounted in a large lathe and spun against a knife edge. As the knife moves deeper into the turning log, it peels off a continuous strip of wood. This creates rotary-cut veneer. Other veneer...

wood products

Engineered Wood Products in Construction

Engineered wood products are made from wood strands, veneers, lumber, and even waste wood shreds. They are used in both structural and nonstructural building applications. These materials are designed to improve strength, durability, and versatility in modern construction. Glue-laminated wood, or glulam, is made by bonding several smaller pieces of dimensional lumber with adhesive. Cross-laminated timber uses solid lumber panels with layers placed so the grain direction alternates. This layer...

wood panel products

Types of Wood Panels in Construction

Wood panels are common construction materials used for flooring, siding, and roofing. They usually come in standard 4-foot by 8-foot sheets. Their thickness can range from one-quarter of an inch to one and one-eighth inches. Plywood is one of the most familiar wood panels. It is made by gluing thin wood veneers, or layers, under pressure. The outer veneer grain runs lengthwise, while the inner layers run widthwise. Plywood also has an odd number of layers, which helps keep the panel...

key terms and concepts

Learn how wood surfacing improves lumber size, smoothness, and safety using planes, four-side or two-side surfacing, and sanding with the grain.

Wood Surfacing for Smooth, Safe Lumber | JoVE K12

JoVE Core Civil Engineering offers a foundational exploration of essential construction materials such as bricks, stones, steel, wood, and concrete, along with fluid mechanics topics like flow over immersed bodies, open channel flow, and dimensional modeling. It also covers key surveying concepts, including leveling, traverse adjustments, curve design, topographic mapping, and geospatial technologies (GPS & GIS). Science-in-action videos showcase laboratory research on materials, fluids, and surveying practices in real-world engineering systems.

civil engineering

Wood Surfacing for Smooth, Safe Lumber

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