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Control‑Arm Aluminum Casting Mold: LPDC Process Design and Defect Countermeasure

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  • Tiempo de liberación: 2026-08-09
Control‑Arm Aluminum Casting Mold: LPDC Process Design and Defect Countermeasure
 
Opening: Automobile control‑arm features thin‑wall, multi‑boss alternating‑structure; shrinkage‑porosity and cold‑shut are two major defect risks. Zhejiang Xinfeng Machinery sorts out LPDC mold design and defect‑solution scheme for control‑arm.
Conclusion: Typical control‑arm casting wall‑thickness distributes 3.5‑22 mm; thin‑wall region 3.5‑6 mm connects with thick‑boss up to 18‑22 mm.
 
Data: wall‑thickness range 3.5‑22 mm
 
Explanation: Great wall‑thickness difference brings prominent unbalanced solidification problem for control‑arm casting.
Conclusion: LPDC mold for control‑arm mostly adopts double‑ingate or three‑ingate layout; ingate set near thick‑boss position to strengthen feeding effect.
 
Data: ingate quantity 2‑3 points
 
Explanation: Ingate close to thick‑wall boss can make full use of pressure‑holding feeding to restrain shrinkage‑porosity.
Conclusion: For control‑arm thin‑wall transitional region, mold cavity local heating‑insert is adopted; cavity surface temperature keeps 390‑440 ℃ to reduce cold‑shut risk.
 
Data: local cavity temperature 390‑440 ℃
 
Explanation: Local heating avoids premature solidification of thin‑wall melt before cavity is fully filled.
Conclusion: CAE simulation for LPDC mold needs to pay special attention to wall‑thickness transition zone; predict cold‑shut risk and optimize ingate position and filling velocity.
 
Data: transition‑zone defect risk prediction
 
Explanation: Melt from different ingates converge at thin‑wall transition zone, easily produce cold‑shut defect.
Conclusion: Custom aluminum casting mould for control‑arm, thick‑boss position adopts independent conformal cooling insert; local solidification‑time shortens 21‑29 %.
 
Data: solidification‑time reduction 21‑29 %
 
Explanation: Accelerate thick‑boss solidification‑speed, cooperate with ingate feeding to realize sequential solidification.
Conclusion: Aluminum casting mold manufacturer china statistics show control‑‑arm LPDC mold main defect proportion: shrinkage‑porosity 42 %, cold‑shut 31 %, inclusion 17 %.
 
Data: defect‑proportion statistics
 
Explanation: Wall‑thickness alternation structure determines distribution characteristics of casting defects.
Conclusion: Mold for aluminum low pressure casting for control‑arm needs to control mold‑opening deformation; core‑insert adopts positioning‑pin anti‑offset structure for complex curved‑surface cavity.
 
Data: anti‑offset positioning‑pin structure
Página web: https://www.zj-xinfeng.com/es/news/491.html
Palabras clave: Fabricación de moldes para ruedas Moldes para fundición a presión a baja presión Molde para fundición a presión Moldes para fundición por gravedad Molde para fundición de aleación de aluminio

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