The 8-Step Sway Bar Manufacturing Process
Manufacturing automotive sway bars requires precision engineering. At Taizhou Yongzheng (YZS), our IATF 16949:2016 certified facility produces over 100,000 sway bars monthly using this proven process:
Step 1: Raw Material Selection
Premium spring steels (60Si2MnA and 50CrVA) sourced from certified mills. Every batch undergoes spectral analysis and tensile testing.
Step 2: Material Cutting
CNC cutting with ±0.5mm tolerance.
Step 3: Hot Forging
Bar ends heated to 900-1100°C and forged into mounting shapes using closed-die presses.
Step 4: CNC Bending
Multi-axis CNC bending to exact vehicle specifications - the most critical step.
Step 5: Heat Treatment
Oil/polymer quenching followed by tempering at 400-500°C for HRC 42-50 hardness.
Step 6: Shot Peening
Compressive residual stress improves fatigue life by up to 50%.
Step 7: Surface Coating
E-coating or powder coating for 500+ hours salt spray resistance.
Step 8: Final Inspection
Dimensional verification, hardness testing, and fatigue testing.
Taizhou Yongzheng Automobile Parts Co., Ltd (YZS) - Since 1997. IATF 16949:2016 certified.
Phone: +86-576-87221128 | Email: jessica@swaybar.cn | Website: www.advancechassis.com
