Q: What are the deep drawing limits and precautions for DC04?
A: Suitable for HF grade drawing; blank holder force, lubrication, and die clearance need to be controlled to prevent wrinkling or cracking.
Q: What is the typical bending radius for DC04?
A: The minimum inner bending radius is approximately 0.5 × sheet thickness. For thinner materials, it can be smaller; for thicker materials, increase the radius appropriately to avoid cracking.
Q: How to choose a lubricant when stamping DC04?
A: Use special stamping oil or emulsion for deep drawing to ensure lubrication and cleanliness, avoiding sticking to the die and surface contamination.
Q: How to control the springback characteristics of DC04?
A: Use annealed state, optimize die angles, add forming processes, or apply local pressure to reduce springback.
Q: Can DC04 undergo subsequent heat treatment for strengthening?
A: Heat treatment has limited strengthening effects on low-carbon steel; if strength improvement is needed, it can be achieved through cold rolling hardening or surface treatment.