Weld Joint Geometry
Weld geometry refers to the exact shape and dimensions of the seam, including reinforcement, flank angle, and penetration depth. These determine the load-bearing capacity and appearance of the joint.
Physicochemical Working Principle
The weld seam geometry influences stress distribution and mechanical strength of the joint. Optimal geometry results in even stress distribution, reducing cracks and wear.
Metallurgical Relevance & Welding Risks
Uneven seam geometry can lead to high local stresses, which can cause cracks or wear. Excessive penetration can contaminate the material under the seam and impair its strength.
Workshop Practice & Instructions
To ensure good weld seam geometry, check the correct setup of the welding machine. Make sure the groove angle is between 30° and 45° and the reinforcement is no more than 1.5 times the material thickness. A penetration depth of 2 to 3 mm for thin materials and 3 to 4 mm for thick materials is recommended.