Knobble

{
  "id": "MLC-T-IND-003201",
  "term": "Knobble",
  "field": "Industrial and trades",
  "definition": "To work a mass of refined iron from a finery forge into a consolidated lump, or knob, suitable for hammering into a bar. This historical process was a key step in producing wrought iron from pig iron, involving reheating and hammering a bloom to expel slag and weld the iron particles together. The resulting knobby lump was then taken to a shingling hammer or early rolling mill for further processing into a more uniform shape.",
  "subject": "Metallurgy",
  "translations": {
    "de": "Knobble",
    "es": "forjar",
    "fr": "corroyer"
  },
  "url": "https://mlchart.com/terminology/industrial/knobble/"
}