Case Studies

Thanks to Cobot Welder, Dean Li. Reduced defect rate from 7% to 1% while labor cost dropped by 40%. Peak season the cobot work 24hours a day boost a 3X production. Senior welder, Lao Wang like the Cobotarc so much that it did not replace him but help him with detail but time consuming work and no need to worry about the deadline anymore.

In September, Li Jianguo(Dean of the Factory) fumed at the production schedule pinned to the workshop wall: Forty orders left, with just three days until the deadline. Old welder Wang Jianjun rubbed his hands beside his station, scowling. "These thin-walled parts—my manual welds keep coming out crooked. Quality control just sent back five more!"

"Dad, try something new," came a voice from his daughter Li Xiaoyu’s video call that evening. On screen, a technician in a blue uniform guided a silver robotic arm: starting at point A on the steel plate, sliding to point B, then tapping four times along the weld seam’s curve. "No programming needed. Just guide it to mark the start and end, maybe a few key points on curved seams. It’ll map the path itself using its seam-tracking system."

The next day, the cobot arrived. Wang Jianjun stared at it, goggles in hand, hesitant. "I’ve been welding for thirty years—can I even handle this high-tech stuff?" The technician handed him the control handle. "Just guide the arm from start to finish, like you’re drawing the weld bead yourself." Skeptical but curious, Wang gripped the arm. It felt light as a feather in his palm. He guided it smoothly from left to right, then tapped four points where the seam bent. A soft "beep"—the screen flashed "Path Generated."

The cobot whirred to life. Its welding torch pressed steady against the steel, sparks fizzing. The result? A sleek, silver weld seam, smooth on both sides, no gaps or air bubbles. "Wow!" Wang leaned in, astonished. "Even better than my manual work!" The technician grinned. "Its seam tracker adjusts automatically if the steel warps. See this dissimilar metal joint?" He nodded toward a pile of battery tray scraps. "Used to take you half an hour to tweak parameters. Now? Just mark a couple points, and it figures it out."

By October, two cobots had become the workshop’s "new welding stars." Wang offloaded the trickiest tasks—overhead and vertical welds—to them, focusing instead on simpler jobs and mentoring new hires. "Guide the arm here for the start," he’d teach, "then tap three points for the curve. Faster than memorizing blueprints!"

At month’s end, Li Jianguo beamed at the financial report: Production had doubled, defect rates plummeted from 7% to 1%, and labor costs dropped by nearly 40%. A quality inspection report from a new energy vehicle manufacturer read: "Consistent welding quality. Looking forward to long-term cooperation."

"Uncle Li!" Wang called, approaching with a thermos. "I just passed my cobot operation certification. The tech said I’m great at teaching rookies to mark points!" He gestured to the cobot welding a battery tray. "In a couple days, that German order will be ours—with this human-robot duo!"

Sparks flew, the cobot hummed softly. Li Jianguo watched Wang teach a trainee to guide the arm, and finally understood his daughter’s words: Smart manufacturing isn’t about robots replacing humans. It’s about giving old crafts a smarter partner.