Surface Finishes

Heat Treatment Services

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Heat Treatment

Heat treatment is a controlled and systematic process employed to modify the physical and mechanical characteristics of materials, particularly metals and alloys. Through carefully calibrated heating and cooling cycles, this method aims to enhance specific properties such as hardness, toughness, and ductility. By subjecting materials to precise thermal conditions, heat treatment mitigates internal stresses, refines microstructures, and ultimately tailors the material’s performance to meet stringent engineering requirements. It is a vital manufacturing technique widely utilized across industries to optimize the strength, resilience, and overall quality of various components.

Applicable MaterialsColor Options

Heat Treatment Parts

Heat Treatment Process

Heat treatment is the procedure of controlled heating & cooling of a material to preferred material or commercial properties. It alters four of the main product homes of metal parts, which are firmness, strength, toughness, and ductility.

Heat Treatment Design Consideration

You can apply heat treatments to metal alloys at different phases of the CNC machining process, either before you begin machining your components or after.

Before CNC machining

When a standardized grade of a metal alloy is requested that is readily available, the CNC service provider will machine the parts directly from that stock material. This is often the best option for reducing lead times.

After CNC machining

Some heat treatments significantly increase the hardness of the material or are used as a finishing step after forming. In these cases, the heat treatment is applied after CNC machining, as high hardness reduces the machinability of a material. For example, this is standard practice when CNC machining tool steel parts. The parts after heat treatment need to be CNC machined again


Heat treatment is a controlled process of heating and cooling materials to modify their mechanical properties in CNC machining.
Common materials for heat treatment include steel, aluminum, and various alloys used in CNC machining.
Common methods include annealing, tempering, quenching, and case hardening, each serving different purposes.
Heat treatment can cause slight dimensional changes in CNC-machined parts, which are considered during design.
Yes, heat treatment can be used for both ferrous (iron-based) and non-ferrous metals.
Heat treatment is generally considered environmentally friendly when proper processes and waste disposal methods are employed.
Sometimes, post-treatment machining is needed to achieve precise tolerances after heat treatment.
Yes, heat treatment is suitable for batch production, ensuring consistent material properties across multiple parts.
Quality checks include hardness testing, microstructure analysis, and dimensional inspections to verify material properties.

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