also: ばんきん
noun
sheet metal; metal plate
Refers to flat, thin metal sheets used in manufacturing, construction, and repair.
車の修理に板金が必要だ。
Sheet metal is needed for the car repair.
板金加工の技術を学んでいる。
I'm learning sheet metal processing techniques.
Rare variant using 鈑; restricted to ばんきん reading.
Rare variant using 銀; restricted to いたがね reading.
More general term for any metal plate; 板金 specifically implies thin, workable sheets.
Compound of 板 (ita, 'board, plate') and 金 (kane, 'metal'), with rendaku voicing to gane. The reading ばんきん is the on'yomi version.