noun
manufacturing; craftsmanship; build quality
Refers to the quality and thoroughness of construction, often in industrial or artisanal contexts. Implies careful, detailed work.
この車の作り込みは素晴らしい。
The build quality of this car is excellent.
彼の作品は細部まで作り込みが行き届いている。
His work shows meticulous craftsmanship down to the smallest detail.
noun
molding a sword blade
Only when written 造り込み
Specialized term in swordsmithing for the process of shaping and forging the blade. Restricted to the kanji 造り込み.
刀匠は造り込みに数日を費やす。
The swordsmith spends several days on molding the blade.
Compound of 作り (tsukuri, 'making') + 込み (komi, 'including thoroughly'), from the verb 作り込む (tsukurikomu, 'to build in detail').