Forming or shaping — making a material into a desired shape by processing.
職人は木を削って椅子の部品を成形した。
The craftsman carved the wood to shape the chair parts.
3Dプリンタで部品を成形する実験を行った。
We conducted experiments forming parts with a 3D printer.
粘土を手で成形して陶器の形にする。
Shape the clay by hand into the form of pottery.
Molding/casting/compacting — industrial processes such as injection molding or compaction to form parts.
プラスチック部品は射出成形で大量生産されている。
Plastic parts are mass-produced by injection molding.
粉末金属を成形してから焼結する工程が必要だ。
The process requires forming the metal powder and then sintering it.
成型（成形）条件を調整して製品の精度を上げる。
Adjust molding conditions to improve product accuracy.
In biology, the adult form or stage of an organism (specialized technical usage).
この昆虫は複数回脱皮して成形になる。
This insect molts several times to reach its adult form.
成形と幼形の違いを観察して成長過程を理解する。
Observe the difference between adult and juvenile forms to understand the growth process.