Cast aluminum: leaving the mold marks visible

A close-up of a cast aluminum furniture component—possibly a chair joint, a table leg base, or a shelf bracket—with the rough texture of sand casting preserved on its surface, showing subtle granularity and flowing patterns, as well as a parting line along the component's centerline, which has not been ground away. Only the mating surfaces that contact other components are machine-finished, presenting a smooth silver color that clearly contrasts with the rough cast surface. The component's shape is dictated by stress: thicker where stress is high, thinner and perforated for weight reduction where stress is low. The surface is natural aluminum color, not anodized. Avoid: entire surface polished smooth, parting line removed, uniform component thickness, painted surface covering the metal's natural color.

Translated from Chinese by AI.

一個鑄鋁的家具構件近景——可能是椅子的關節、桌腳的底座或層架的托座——表面保留砂模鑄造的粗糙質地,有細微的顆粒感與流動的紋理,以及一道沿著構件中線的分模線,沒有被打磨掉。只有與其他構件接觸的配合面經過機械加工,呈現光滑的銀色,與粗糙的鑄面形成清楚對比。構件的形狀是為了受力而生的:應力大的地方厚、小的地方薄且開孔減重。表面是自然的鋁色,未經陽極處理。避免:表面全部打磨光滑、分模線被清除、形狀做成均勻厚度、噴漆蓋住金屬本色。