{"L1_core": {"domain": "manufacturing", "category": "forming", "entity_type": "process", "subcategory": "extrusion"}, "L5_metadata": {"updated": "2026-01-02", "version": "2.0"}, "L3_relations": {"outputs": ["aluminum_profile", "plastic_profile", "tube"], "requires": ["die", "press", "heating_system"]}, "L2_manufacturing": {"types": {"by_method": {"direct": "ram_pushes_through_die", "indirect": "die_moves_into_billet", "hydrostatic": "fluid_pressure"}, "by_temperature": {"hot": {"temp_C_aluminum": [350, 500]}, "cold": {"temp": "ambient"}, "warm": {"temp": "intermediate"}}}, "defects": ["surface_cracks", "die_marks", "weld_lines", "thermal_distortion"], "materials": ["aluminum", "copper", "brass", "plastics", "rubber"], "standards": ["ISO 2376", "EN 755", "ASTM B221"], "parameters_aluminum": {"pressure_MPa": [200, 700], "billet_temp_C": [400, 500], "extrusion_ratio": [10, 100], "extrusion_speed_m_min": [5, 50]}}}