Methods and apparatus for tailored grain size in an additive manufacturing environment

An apparatus comprising:

• controller circuitry configured to:
• perform a simulation based on an operating temperature and a stress performance of a first portion and a second portion of a part to determine a first grain size and a second grain size of the part, wherein the operating temperature and the stress performance vary between the first portion and the second portion of the part;
• and
• determine a configuration for manufacture of the first portion and the second portion of the part based on the simulation, the determination of the configuration to specify the first grain size for the first portion and specify the second grain size for the second portion based on the simulation, wherein the first grain size is different from the second grain size;
• an additive manufacturing machine to manufacture the part according to the configuration, the controller circuitry in communication with the additive manufacturing machine to control the additive manufacturing machine to manufacture the part according to the configuration by depositing material forming the first portion and the second portion of the part;
• and
• a force application device connected to the additive manufacturing machine and in communication with the controller circuitry, the force application device to apply a first force to the first portion and a second force to the second portion, after deposition by the additive manufacturing machine during manufacture, wherein the controller circuitry instructs the force application device to apply the first force specified in the configuration according to the simulation to produce the first grain size and the second force specified in the configuration according to the simulation to produce the second grain size.