RT journal article T1 Determining Optimal Processing Conditions for Fabricating Industrial Moulds with Additive Manufacturing A1 Moreno Nieto, Francisco Daniel A1 Puertas Morales, Francisco Javier A1 Rivera Vera, Julia A1 Burgos Pintos, Pedro A1 Moreno Sánchez, Daniel A1 Molina Rubio, Sergio Ignacio A2 Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica A2 Ingeniería Mecánica y Diseño Industrial K1 large format additive manufacturing K1 fused granular fabrication K1 milling K1 molds K1 tooling AB Additive manufacturing has reached a level of reliability and credibility that hasalready been integrated into specific industries producing final parts or tooling. AmongMaterial Extrusion (ME) techniques, the Fused Granular Fabrication (FGF) method hasenabled the development of Large Format Additive Manufacturing (LFAM) using polymeric materials, which has also established its presence in industries working with largeprototypes, molds, and tools. This cost-efficient process has proven its applicability andsuccess in manufacturing molds for composites, particularly in short and medium production runs, significantly reducing production times and costs. This paper presents twoexperiments designed to optimize process parameters when producing molds using thecombined FGF and milling approach. These experiments identified optimal extrusion temperatures and extrusion multipliers to minimize defects at both the macro- and microscalesfor ASA 20 wt.% carbon fiber (CF) material; additionally, a correlation between millingspeed, milling strategy, and surface roughness was established. These findings are valuablefor industries adopting this innovative production method, as they provide guidance fordefining process parameters to achieve the desired surface roughness of a specific part.A case study of the design of an automobile carter mold is presented, concluding that aspecific range of milling speeds is required for conventional or climbing milling strategiesto achieve a defined surface roughness range. PB MDPI SN 2076-3417 YR 2025 FD 2025-04 LK http://hdl.handle.net/10498/37982 UL http://hdl.handle.net/10498/37982 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 06-nov-2026