We did have problem while forming tubes into some round shape, most of them became oval. (with Inconel material) It became round shape while we did some improvements with our molding design, but it appear not a true round shape within 0.01~0.03mm deviation. I have the idea to reforming the tube again to cover the metal shrinkage, but it would be another big problem to fix the preforming one. Please have your idea regarding this issue! Thanks Square
