Joining techniques are methods used to connect two or more materials together, often in construction or manufacturing. Common techniques include welding, where heat is used to melt and fuse materials, and adhesive bonding, which involves using glue or other substances to hold materials together. Each technique has its own advantages and is chosen based on the materials involved and the desired strength of the joint. Another popular joining technique is mechanical fastening, which uses screws, bolts, or rivets to secure materials. This method allows for easy disassembly and repair, making it ideal for applications where maintenance is necessary. Understanding these techniques is essential for professionals in fields like engineering and carpentry.