What are the challenges of welding repairs on cast iron outdoor bar stools?

Welding repairs on cast iron outdoor bar stools present several unique challenges due to the material's properties. Cast iron is prone to cracking under heat stress, making controlled welding techniques essential. Porosity can also occur if impurities are not properly cleaned before welding. Additionally, the high carbon content in cast iron complicates fusion with filler metals, requiring specialized rods. Uneven heat distribution may lead to warping, further compromising structural integrity. Proper pre-heating and post-weld cooling are critical to minimize these risks and ensure a durable repair. Understanding these challenges helps achieve long-lasting results for outdoor furniture restoration.