Qi K.

Experience

• Mechanical Engineer HG laser · Full-time Apr 2024 – Present 2 yrs 6 mos Wuhan, Hubei, China 1. R&D and mechanical structure design of precision laser welding equipment; responsible for development of the complete machine, welding fixtures, and automated loading/unloading mechanisms. Completed 3D modeling and engineering drawings in SolidWorks and AutoCAD; worked with the optics and electrical teams to optimize the matching of the optical path with the mechanical structure, ensuring welding stability.
  2. Responsible for on-site production-line equipment commissioning and optimization, improving equipment cycle time. During mass production, conducted root-cause failure analysis (structural interference, part failure, etc.), delivered solutions, and resolved on-site issues rapidly.
  3. Prepared BOMs, assembly SOPs, equipment maintenance manuals, and preventive maintenance (PM) plans. Built a mechanical design standards library, raising design reuse rate by more than 30%. Took part in design reviews and DFMEA failure analysis.
  Key Achievements
  1. DFM solution design for the VC and flange laser welding automated production line: completed the whole-line layout and BOM for the three stations (loading, welding, unloading), high-precision automated fixtures, AOI sorting, and cycle-time planning across all operations — achieving a cycle time of 7 s and UPH ≈ 514.
  2. Led DFM solution design and iteration for a five-axis laser cutting machine: completed the X/Y/Z/B/C five-axis machine structure, CCD positioning and correction, quick-changeover pneumatic fixtures with D-shaped mandrels, and the automated loading/unloading solution combining a flexible vibratory bowl feeder with a four-axis robot — achieving a cycle time of 30 s and UPH ≈ 120.
  3. Developed and designed the laser welding system for VR-glasses heat sinks: high-stiffness granite base plus linear-motor drive modules eliminated vibration interference; five-axis simultaneous motion enabled machining of free-form contoured surfaces; designed contour-matching fixtures to locate and clamp the workpiece's irregular surfaces; coordinated with electrical, software, and process engineers to resolve free-form-surface welding control and process issues.
• Mechanical engineer Penta laser · Full-time Jul 2018 – Sep 2023 5 yrs 2 mos Wuhan, Hubei, China Key Responsibilities
  1. Collected feedback from all departments and continuously optimized existing machine models to reduce cost while improving quality and performance.
  2. Developed new machine models in response to market demand.
  3. Developed features addressing the specific needs of segmented markets.
  4. Handled early-stage client communication and guidance, helped define concrete requirements, reviewed technical agreements, designed non-standard (custom) solutions, and provided on-site production and after-sales support.
  Key Achievements
  1. Project lead for the extra-large-format, high-acceleration ground-beam machine: performance reached 120 m/min and 1.3 G; widely adopted in the construction machinery industry, with over one hundred units sold — ranked first in the industry for both performance and sales revenue (2020.01 – 2020.04).
  2. Project lead for the extra-large-format medium/low-speed machine, positioned mainly as a replacement for plasma cutting equipment (2020.08 – 2021.01).
  3. Project lead for the large-format shuttle-table machine — a high-speed, high-precision large-format machine developed specifically to address market demand for large-format equipment and the difficulty of transporting such machines (2021.03 – 2021.06).
  4. Laser cutting production line for XCMG Group's blanking workshop, covering shot blasting, loading, inkjet coding, conveying, cutting, sorting, and leveling operations (2022.02 – 2022.08).
  5. Design of a three-dimensional five-axis laser cutting machine; well familiar with 3D five-axis laser cutting processes (2019.03 – 2019.06).
  6. Project lead for the new-material crossbeam: led the development of a new-material crossbeam with high acceleration, high stiffness, and low deformation, increasing machine acceleration by 40% (2022.02 – 2022.04).
• Mechanical engineer Lixing laser · Full-time Sep 2017 – Jun 2018 9 mos Suzhou, Jiangsu, China Key Achievements
  1. Played a primary role in the design and component selection of the company's first 12,000 W laser cutting machine.
  2. Participated in the design of high-power flat-sheet laser cutting machines in various formats, including the 6020, 6025, and 8025 models.
• Mechanical engineer Wuhan Jinniu Economic Development · Full-time Jun 2016 – Sep 2017 1 yrs 3 mos Wuhan, Hubei, China Key Responsibilities
  1. Produced 3D designs, 2D drawings, and BOM lists based on the requirements of user departments.
  2. Tracked progress and drove projects forward according to milestones.
  3. Handled equipment installation and commissioning, monitored post-startup performance, and collected user-department feedback for continuous improvement.
• Mechanical engineer Dongfeng Electric Vehicle Co., Ltd · Full-time Aug 2012 – Jun 2016 3 yrs 10 mos Wuhan, Hubei, China Worked on EV chassis assembly at Dongfeng Electric Vehicle Co., Ltd., where I gained knowledge of chassis architecture and of assembly procedures, methods, and precautions. I also became familiar with production fixtures and non-standard equipment such as the assist arms for installing the four doors and two hoods and the instrument panel, robot front-end grippers, and assembly trays for the front/rear suspension and instrument panel. Under colleagues' guidance I acquired a working knowledge of inspection methods, QC quality tools, and common quality-analysis techniques.