Haomei Aluminum's 1050 aluminium circles for spinning are high-purity aluminum substrates specifically developed for the point-to-point continuous deformation characteristics of spinning processes. Utilizing refined microstructure and mechanical property control, they are suitable for the forming needs of various spun products such as cookware, lamp reflectors, and thin-walled containers, making them a mainstream high-purity aluminum substrate in the spinning processing field.
Spinning involves continuous localized plastic deformation, where the material simultaneously experiences tensile and compressive stresses and shear stresses in both the circumferential and radial directions. This places significantly higher demands on the plastic uniformity, isotropy, and surface density of the 1050 aluminum circles compared to conventional stamping processes. Based on years of experience serving spinning customers, ordinary deep-drawing grade aluminum circles often exhibit problems such as uneven wall thickness, orange peel texture, and edge cracking when used for spinning. The core reason lies in the high anisotropy of the material and insufficient release of internal stress. Our 1050 aluminum circles for spinning optimize microstructure control from the ingot stage, fundamentally matching the deformation characteristics of the spinning process.
From a performance perspective, all indicators of 1050 aluminum circles have been specifically optimized for spinning applications. The base material uses a 1050 high-purity aluminum system with an aluminum content ≥99.5%, and the iron-silicon impurity ratio is stably controlled within the optimal range of 2-3:1. Under standard O temper fully annealed conditions, the measured elongation after fracture is ≥30%, and the cupping test IE value is ≥10.8mm, indicating ample plasticity reserves. Regarding the circumferential deformation characteristics of spinning, the product achieves excellent isotropic performance through coordinated control of rolling and annealing processes, with a thickness anisotropy coefficient r ≥0.75 and a radial-to-circumferential performance difference ≤5%. Deformation is uniformly transferred during spinning, and the finished product wall thickness deviation can be controlled within ±0.03mm, avoiding excessive local thinning and forming cracks. The grain size is stably controlled within ASTM 6-8 standards, resulting in a uniform and fine microstructure. After spinning, the surface has a high smoothness with no obvious orange peel texture, allowing direct entry into subsequent processes such as polishing and anodizing.
1050 aluminum circles use large-size ingots from DC semi-continuous casting as raw materials. They undergo high-temperature homogenization annealing for over 12 hours to eliminate component segregation, combined with large-deformation hot rolling and precise cold rolling reduction control. Finally, low-temperature long-time annealing achieves full recrystallization, resulting in an internal residual stress release rate ≥95% and performance fluctuations of the same sheet material ≤2%. Before leaving the factory, the products undergo multi-stage degreasing, cleaning, and edge finishing, with surface oil residue ≤5mg/㎡, no burrs or flash on the end faces, and a surface roughness Ra≤0.6μm, allowing for direct feeding and spinning, reducing pre-processing steps for customers.
In actual mass production scenarios, the ultimate spinning ratio of 1050 spinning aluminum circle can reach 3:1. Most conventional depth-spun parts can be formed in one step, eliminating the need for intermediate annealing processes, increasing production efficiency by over 30%. According to our customer feedback, using this special spinning material has resulted in a stable overall yield rate of over 98.5% for spun products, an improvement of approximately 5 percentage points compared to ordinary deep-drawing aluminum circles. The quality improvement is particularly significant in products with high surface finish requirements, such as lamp reflectors and thin-walled, deep-cavity cookware.
Currently, Haomei Aluminum’s standard supply of 1050 aluminum circle for spinning ranges from 0.4mm to 4.0mm in thickness and 120mm to 900mm in diameter. We also support customized non-standard specifications and special mechanical properties. Each batch of aluminum circle comes with material certification and performance test reports. Our products comply with ASTM B209 international standards and food contact safety requirements, and are packaged in protective packaging for ocean shipping. We can reliably supply spinning processing customers worldwide.