Qingdao HyUnion Auto Parts Co., Ltd.
Our Products
I.Steel and Aluminum Hybrid Floor Assemblies
Product Highlights
(1) Lightweight: Heterogeneous materials co-design, optimize the structure of the material transition zone through CAE, adopt high-strength steel (such as hot-forming steel, ultra-high-strength steel) in the key load-bearing zone, which is 30%-50% higher than traditional steel, and use low-density aluminum alloy in the non-load-bearing zone, which is 15%-20% lower than the all-steel program.
(2) Good connection performance: for steel and aluminum dissimilar metal welding difficulties, connection process innovation and multi-technology fusion of the connection program, according to different materials and body position selection of the appropriate connection process, in reducing the weight at the same time significantly improve the connection strength of steel and aluminum body.
(3) High corrosion resistance: steel is hot-dipped galvanized, aluminum alloy is anodized to form a double anti-corrosion barrier, salt spray resistance test can reach more than 1,000 hours, life expectancy is 20%-30% longer than ordinary floor.
(4) Short manufacturing cycle: the use of a variety of processes to produce products, the number of parts and processing procedures to reduce. Compared with the traditional stamping and welding process, the production efficiency can be increased several times, the production cycle can be shortened by about 50%, and the production efficiency is significantly improved.
II.Longitudinal Beam Assembly
Product Highlights
(1) Combination of high strength and high toughness: the use of high strength steel mixed with thermoforming, thermoforming steel part can
provide excellent strength and collision resistance, in the event of a vehicle collision can effectively absorb and disperse the energy, to protect the
safety of passengers in the vehicle; high strength rigid part of the longitudinal beam to give relatively good toughness, to improve its fatigue
resistance, so that the longitudinal beam can better withstand the dynamic loads of the vehicle driving process.
(2) Lightweight: under the premise of ensuring strength, the thickness of thermoformed high-strength plate can be relatively thinner, thus realizing
the lightweight of the vehicle. Compared with traditional common steel plate longitudinal beams, thermoformed + reinforced plate longitudinal
beams can reduce weight by about 20% - 30%.
(3) Cost reduction: Reasonable selection of materials, using thermoformed plates for key parts and high-strength steel for other parts, so as to
achieve a certain degree of strengthening effect and cost control.
III.Front Floor Assembly
Product Highlights
（1）Low material cost:Manufactured via stamping of high/ultra-high strength steel, achieving high material utilization and effective production cost control.
（2）Mature and stable manufacturing process: Manufactured via mature stamping, welding and sealing processes, featuring high dimensional accuracy and excellent quality consistency. It is compatible with automated production lines to meet OEM high-takt mass production requirements.
（3）Modular integrated design: Integrates key interfaces such as seat mounting points, seatbelt anchor points, sill beam connections, and mounting positions for battery packs/chassis components, enabling multi-system integration, reducing assembly errors and improving overall vehicle assembly efficiency
IV.Rear Floor Assembly
Product Highlights
（1）Low material cost:Manufactured via stamping of high/ultra-high strength steel, achieving high material utilization and effective production cost control.
（2）Mature and stable manufacturing process: Manufactured via mature stamping, welding and sealing processes, featuring high dimensional accuracy and excellent quality consistency. It is compatible with automated production lines to meet OEM high-takt mass production requirements.
（3）Modular integrated design: Integrates key interfaces such as seat mounting points, seatbelt anchor points, spare tire/battery pack mounting positions, and rear longitudinal rail connections, enabling multi-system integration. It reduces assembly errors and improves overall vehicle assembly efficiency and structural integrity.
V.Rear Floor Crossmember Assembly
Product Highlights
（1）Low material cost:Manufactured via stamping of high/ultra-high strength steel, achieving high material utilization and effective production cost control.
（2）Mature and stable manufacturing process: Manufactured via mature stamping, welding processes, featuring high dimensional accuracy and excellent quality consistency. It is compatible with automated production lines to meet OEM high-takt mass production requirements.
（3）Modular integrated design: Integrates key structures such as seat mounting points, seatbelt anchor points and body longitudinal rail connection interfaces, enabling precise matching with the rear floor and rear rails. It reduces assembly errors and improves overall vehicle assembly efficiency and structural integrity.
VI.Side Frame Assembly
Product Highlights
（1）Low material cost:Manufactured via stamping of high/ultra-high strength steel, achieving high material utilization and effective production cost control.
（2）Mature and stable manufacturing process: Manufactured via mature stamping, welding and sealing processes, featuring high dimensional accuracy and excellent quality consistency. It is compatible with automated production lines to meet OEM high-takt mass production requirements.
（3）Modular integrated design: Integrates key interfaces such as door mounting points, seat/seatbelt anchor points, side airbag mounting positions and sunroof rail connections, enabling multi-system integration. It reduces assembly errors and improves overall vehicle assembly efficiency and structural integrity.
VII.Rear Side Inner Panel Upper Assembly
Product Highlights
（1）High rigidity & optimized structure: Features reinforcing ribs and optimized cross-sections for enhanced torsion/bending resistance. Precision stamping ensures accurate fitment and improved assembly quality.
（2）Controllable material cost: Uses mild high-strength steel to effectively control costs while meeting performance requirements.
（3）Proven and stable manufacturing processes: Adopts mature stamping and welding processes, ensuring high production efficiency and good quality consistency.
VIII.Wheel Housing Assembly
Product Highlights
（1）High-strength modular structural design:Adopts a multi-component welding/bolting assembly to achieve "multi-part integration". Key load-bearing points use a combination of thickened plates and reinforcements, enabling the structure to withstand long-term vibration and impact, and adapt to complex road conditions.
（2）Controllable material cost: High-strength steel is used to effectively control costs while meeting performance requirements.
（3）Proven and stable manufacturing processes: The wheel housing main body is stamped from high-strength steel plates. With mature stamping and welding processes, it delivers high production efficiency and excellent quality consistency.
IX.Front Wheel Housing Upper Reinforcement Outer Panel Sub-Assembly
Product Highlights
（1）Low material cost:Manufactured via stamping of high/ultra-high strength steel, achieving high material utilization and effective production cost control.
（2）Mature and stable manufacturing process: Manufactured via mature stamping, welding processes, featuring high dimensional accuracy and excellent quality consistency. It is compatible with automated production lines to meet OEM high-takt mass production requirements.
（3）Integrated mounting and structural reinforcement design: Integrates key mounting interfaces for the shock tower, fender, and front longitudinal rail, enabling precise multi-component connections. It enhances the overall torsional and bending rigidity of the front wheel housing area, providing a stable and reliable mounting base for the chassis suspension system.
X.Carbon Steel Cross Car Beamy
Product Highlights
（1）Low cost: Made of ordinary carbon steel high-frequency welded pipes via stamping and welding processes, featuring low material costs.
（2）High platform compatibility: Adopt platform-oriented design to suit diverse vehicle models. Simply adjust bracket structures as required to greatly reduce R&D costs.
（3）Proven manufacturing processes: It adopts simple and mature processes such as cold stamping, high-frequency tube forming, projection welding and welding.
XI.Front Frame Assembly
Product Highlights
（1）Low material cost: The main structure uses mild steel high-frequency welded tubes, replacing traditional high-strength steel/aluminum alloy materials. This significantly reduces raw material costs while meeting performance requirements, lowering manufacturing costs by approximately 30%-40% compared to similar lightweighting solutions.
（2）Proven and stable manufacturing processes: Adopts mature process routes such as cold stamping, high-frequency tube forming, projection welding, and arc welding. Weld seam length is reduced by 40% compared to traditional stamped and clinched structures, with simultaneous reductions in welding wire consumption and energy use, resulting in high production yield and consistency.
（3）Optimized structure: Balances rigidity, safety, and lightweighting. Lowers unit BOM cost, shortens the platform development cycle, and reduces mold and tooling investment.
XII.Rear Frame Assembly
Product Highlights
（1）Low material cost: The main structure is made of mild steel, effectively controlling costs while meeting performance requirements.
（2）Proven and stable manufacturing processes: Adopts mature stamping and welding processes, ensuring high production efficiency and good consistency.
（3）Optimized structure: Adopts a closed-section design with reinforcing ribs, effectively enhancing the body's torsional stiffness.
Contact us: yangli@hyunion.com.cn