Research and Application of Integrated Die-Casting Technology for New Energy Vehicle Chassis Subframe
The chassis subframe of new energy vehicles has a large size,complex structure and high mechanical performance requirements.The conventional integrated die-casting process cannot meet the design requirements.Three stage vacuum pumping technology improved the vacuum degree of the mold cavity.The use of cluster local extrusion technology has improved the regional organizational structure,effectively reduced shrinkage and porosity.Production practice certificated that the application of two technologies has improved the quality of the die castings,improved production efficiency,and achieved a product qualification rate of over 95％.
vehicle chassis subframeintegrated die castingthree stage vacuum pumpinglocal extrusion
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