Tailored press hardening is changing the way automotive engineers think about press-hardened steel components. Instead of giving an entire part essentially the same hardened condition, tailored processing can create regions with different mechanical properties within one component.
A safety-critical automotive structure may require a very strong, load-bearing region next to another region that needs more controlled deformation and energy absorption during a crash. Tailored press hardening allows these different functions to be engineered into the same component through localized thermal processing before and during forming and quenching.
This trend is particularly relevant as vehicle architectures move toward electrification, larger structural components and greater parts integration. It also introduces new requirements for thermal simulation, forming analysis, tooling strategy, transition-zone control and dimensional validation.
In April 2026, AP&T introduced its TemperBox tailored press-hardening offering together with GEDIA. The technology uses controlled temperature profiles within one blank to create harder load-bearing zones and more ductile energy-absorbing zones after press hardening. This article discusses that development as an industry trend; the technology and related examples are not presented as Changdong production capabilities.
Highly hardened regions can provide strength, intrusion resistance and load-carrying performance where the structure requires them.
More ductile regions can allow controlled deformation and energy absorption instead of maximizing hardness throughout the component.
Temperature history is controlled locally so different areas of one blank enter forming and quenching under different thermal conditions.
One structural component can be engineered to carry loads in one region and deform more progressively in another.
Tailored press hardening is an advanced hot-forming approach in which selected regions of a steel blank are given different thermal histories so that the final press-hardened component contains different mechanical properties. A high-strength hard zone can support crash loads and resist intrusion, while a more ductile zone can deform and absorb energy. The location and transition between these zones must be engineered according to the structural function of the automotive part.
Conventional press hardening is widely associated with heating a suitable steel blank, transferring it into the forming tool, shaping the component and rapidly cooling it in the die to produce a high-strength structure.
This approach is valuable for components where very high strength is required across a large proportion of the part. But automotive structures do not always need identical properties everywhere. Some regions must resist intrusion, while others are designed to deform progressively and manage crash energy.
Tailored press hardening introduces another design variable: where should the component be very hard, and where should it retain more ductility? This moves material-property distribution into the early vehicle-structure design process rather than treating the component as mechanically uniform.
Tailored properties can be produced through different process concepts. The specific 2026 AP&T TemperBox approach controls the temperature profile before forming by selectively shielding thermal radiation in chosen areas of the blank.
Regions that reach the required full heating condition can transform into highly hardened zones during die quenching. Regions that remain at a different thermal condition retain a more ductile final material state.
“Soft zone” is a relative engineering term. These areas are not necessarily soft in the everyday sense; they are designed to be more ductile than the fully hardened region so that the component can combine different crash functions.
| Component Region | Design Objective | Typical Structural Role |
|---|---|---|
| Hard zone | High strength and structural rigidity | Load transfer, intrusion resistance and passenger-compartment protection |
| Ductile zone | Controlled deformation and higher energy absorption | Crash-energy management and controlled structural collapse |
| Transition zone | Controlled property change between two functional regions | Avoid an uncontrolled boundary between very different mechanical responses |
The engineering challenge is not only to create one hard area and one ductile area. The transition between them affects how load moves through the component during forming, assembly and crash deformation.
A transition placed in the wrong location could shift deformation into an undesirable region. Its position, width and final mechanical-property gradient therefore need to be considered together with part geometry, crash load paths and joining locations.
This is one reason tailored press hardening requires close interaction between structural CAE, thermal analysis, forming simulation and physical validation. The blank temperature distribution must ultimately produce the intended component behavior rather than only the intended local hardness.
Automotive crash structures rarely perform only one function. A B-pillar, reinforcement or other body component can participate in intrusion resistance, load transfer and controlled energy absorption at different positions.
Making the entire component as hard as possible may improve one performance metric while reducing deformation capability elsewhere. Tailored properties provide engineers with another way to distribute structural response within one part.
This is especially relevant as electric vehicles introduce different body-load paths and additional protection requirements around battery systems. The design objective is not simply maximum material strength, but placing the appropriate combination of strength and ductility in the correct regions.
Parts consolidation is pushing automotive manufacturing toward larger components that perform functions previously divided among several smaller parts. Press hardening is also moving in this direction, with new production systems being developed for large and complex integrated sheet-metal structures.
Tailored properties can support that trend because one larger component no longer has to provide identical behavior everywhere. Different areas can be engineered for different structural functions while remaining part of one formed component.
That does not mean every assembly should become one hot-stamped part. Joining strategy, manufacturing investment, repairability, material utilization, production volume, equipment and crash requirements still determine whether integration is beneficial.
| Engineering Area | Tailored Press-Hardening Requirement |
|---|---|
| Structural CAE | Determine where strength, ductility and energy absorption should be positioned in the component. |
| Thermal simulation | Predict local temperature distribution, heating history and the location of property-transition regions. |
| Forming simulation | Evaluate material flow and forming behavior when different areas of the blank enter forming under different thermal conditions. |
| Tooling / quenching | Maintain the required part geometry while controlling cooling and final material transformation. |
| Quality validation | Confirm not only dimensions but also that the intended material-property distribution has been achieved. |
| Factor | Fully Hardened PHS | Tailored Press Hardening |
|---|---|---|
| Property strategy | High hardened strength across most or all of the component | Different properties intentionally distributed within the same component |
| Crash design | Well suited to regions dominated by intrusion resistance and high load carrying | Can combine strong regions with areas designed for greater deformation |
| Process complexity | Thermal and quenching control remain critical | Adds local temperature and transition-zone control to the process |
| Engineering dependence | Requires thermal, forming and dimensional validation | Requires those controls plus validation of the intended local-property distribution |
Tailored press hardening is developing at the same time that 3rd Gen AHSS is widening the range of structures that can be considered for cold stamping. These trends should not be viewed as direct substitutes in every application.
3rd Gen AHSS seeks to provide useful combinations of strength and formability through advanced material design while retaining a cold-stamping route. Tailored press hardening uses a thermal forming route and can deliberately create different material-property zones within the finished component.
The appropriate route depends on crash performance, geometry, local strength and ductility requirements, production volume, available equipment, investment and the manufacturer's overall body-structure strategy.
Advanced automotive forming is increasingly shifting from asking only “How strong is this steel?” toward asking “What mechanical behavior is required in each region of the finished component?”
3rd Gen AHSS approaches this problem through increasingly sophisticated material design, while tailored press hardening adds spatial control over properties within the component. Both trends make material behavior, CAE, process design and structural engineering more closely connected.
AP&T's April 2026 tailored press-hardening launch indicates that locally controlled material properties are moving beyond isolated development work toward a broader industrial offering.
Separately, AP&T supplied a SkyLine press-hardening system to Honda's R&D center in Japan in March 2026 for testing and validation of next-generation lightweight forming technologies. This Honda project demonstrates continued investment in advanced press-hardening research, but it should not be interpreted as evidence that Honda has adopted the specific TemperBox tailored-property process.
Combined with the industry's development of larger integrated press-hardened components, these activities suggest that future hot-stamped structures may become not only larger, but also more functionally differentiated within each individual component.
Tailored press hardening is an advanced automotive hot-forming method that creates different mechanical properties in selected regions of one press-hardened steel component.
Hard zones can provide high load-bearing strength and intrusion resistance, while more ductile zones can provide controlled deformation and energy absorption. The intended property distribution depends on thermal processing, forming, quenching and structural design.
Dongguan Changdong Tool & Die Co., Ltd. manufactures custom stamping dies and stamped metal parts. This article analyzes tailored press hardening as an automotive industry trend; Changdong is not presented as a press-hardening furnace, hot-stamping line or TemperBox equipment supplier.
Tailored press hardening creates different mechanical properties in selected regions of a hot-formed steel component by controlling thermal and quenching conditions during the manufacturing process.
Different regions can perform different crash functions. One area may need high strength to resist intrusion, while another may need controlled deformation to absorb crash energy.
“Soft zone” is relative terminology. The region is designed to retain more ductility than the fully hardened zone; its actual mechanical properties depend on the steel and thermal process.
Not necessarily. Tailor-welded blanks combine different sheet materials or thicknesses before forming. Tailored press hardening can create different properties through controlled thermal processing within a component. Some automotive manufacturing strategies may combine more than one tailoring method.
No universal replacement trend should be assumed. Cold-stamped AHSS, 3rd Gen AHSS, fully press-hardened steel and tailored press hardening offer different combinations of material performance, process complexity and production investment.
Changdong is good at making metal stamping dies up to 4.2 meters, also we produce small size metal stamping toolings. The company manages the complete stamping die program from the CAE Simulation, layout designs and stamping tooling designs, and finish the machining to tryout and home line tryout to your hands. Meanwhile, the company produces the prototyping parts and stamping parts range from 45-880T. The successful cases include: stamping tools of Leoni connectors, automotive stamping dies of PSA P8 & B618, metal stamping toolings of Cummins exhaust pipe assembly, automobile stamping dies of NISSAN H60B projects, and stamping tools of car audio system, Canon printers, refrigerators, ovens and washing machines and so on.If you need metal stamping dies ,stamping parts or metal prototypings,
Email to us: sales@chang-dong.com
Tailored press hardening is changing the way automotive engineers think about press-hardened steel components. Instead of giving an entire part essentially the same hardened condition, tailored processing can create regions with different mechanical properties within one component.
A safety-critical automotive structure may require a very strong, load-bearing region next to another region that needs more controlled deformation and energy absorption during a crash. Tailored press hardening allows these different functions to be engineered into the same component through localized thermal processing before and during forming and quenching.
This trend is particularly relevant as vehicle architectures move toward electrification, larger structural components and greater parts integration. It also introduces new requirements for thermal simulation, forming analysis, tooling strategy, transition-zone control and dimensional validation.
In April 2026, AP&T introduced its TemperBox tailored press-hardening offering together with GEDIA. The technology uses controlled temperature profiles within one blank to create harder load-bearing zones and more ductile energy-absorbing zones after press hardening. This article discusses that development as an industry trend; the technology and related examples are not presented as Changdong production capabilities.
Highly hardened regions can provide strength, intrusion resistance and load-carrying performance where the structure requires them.
More ductile regions can allow controlled deformation and energy absorption instead of maximizing hardness throughout the component.
Temperature history is controlled locally so different areas of one blank enter forming and quenching under different thermal conditions.
One structural component can be engineered to carry loads in one region and deform more progressively in another.
Tailored press hardening is an advanced hot-forming approach in which selected regions of a steel blank are given different thermal histories so that the final press-hardened component contains different mechanical properties. A high-strength hard zone can support crash loads and resist intrusion, while a more ductile zone can deform and absorb energy. The location and transition between these zones must be engineered according to the structural function of the automotive part.
Conventional press hardening is widely associated with heating a suitable steel blank, transferring it into the forming tool, shaping the component and rapidly cooling it in the die to produce a high-strength structure.
This approach is valuable for components where very high strength is required across a large proportion of the part. But automotive structures do not always need identical properties everywhere. Some regions must resist intrusion, while others are designed to deform progressively and manage crash energy.
Tailored press hardening introduces another design variable: where should the component be very hard, and where should it retain more ductility? This moves material-property distribution into the early vehicle-structure design process rather than treating the component as mechanically uniform.
Tailored properties can be produced through different process concepts. The specific 2026 AP&T TemperBox approach controls the temperature profile before forming by selectively shielding thermal radiation in chosen areas of the blank.
Regions that reach the required full heating condition can transform into highly hardened zones during die quenching. Regions that remain at a different thermal condition retain a more ductile final material state.
“Soft zone” is a relative engineering term. These areas are not necessarily soft in the everyday sense; they are designed to be more ductile than the fully hardened region so that the component can combine different crash functions.
| Component Region | Design Objective | Typical Structural Role |
|---|---|---|
| Hard zone | High strength and structural rigidity | Load transfer, intrusion resistance and passenger-compartment protection |
| Ductile zone | Controlled deformation and higher energy absorption | Crash-energy management and controlled structural collapse |
| Transition zone | Controlled property change between two functional regions | Avoid an uncontrolled boundary between very different mechanical responses |
The engineering challenge is not only to create one hard area and one ductile area. The transition between them affects how load moves through the component during forming, assembly and crash deformation.
A transition placed in the wrong location could shift deformation into an undesirable region. Its position, width and final mechanical-property gradient therefore need to be considered together with part geometry, crash load paths and joining locations.
This is one reason tailored press hardening requires close interaction between structural CAE, thermal analysis, forming simulation and physical validation. The blank temperature distribution must ultimately produce the intended component behavior rather than only the intended local hardness.
Automotive crash structures rarely perform only one function. A B-pillar, reinforcement or other body component can participate in intrusion resistance, load transfer and controlled energy absorption at different positions.
Making the entire component as hard as possible may improve one performance metric while reducing deformation capability elsewhere. Tailored properties provide engineers with another way to distribute structural response within one part.
This is especially relevant as electric vehicles introduce different body-load paths and additional protection requirements around battery systems. The design objective is not simply maximum material strength, but placing the appropriate combination of strength and ductility in the correct regions.
Parts consolidation is pushing automotive manufacturing toward larger components that perform functions previously divided among several smaller parts. Press hardening is also moving in this direction, with new production systems being developed for large and complex integrated sheet-metal structures.
Tailored properties can support that trend because one larger component no longer has to provide identical behavior everywhere. Different areas can be engineered for different structural functions while remaining part of one formed component.
That does not mean every assembly should become one hot-stamped part. Joining strategy, manufacturing investment, repairability, material utilization, production volume, equipment and crash requirements still determine whether integration is beneficial.
| Engineering Area | Tailored Press-Hardening Requirement |
|---|---|
| Structural CAE | Determine where strength, ductility and energy absorption should be positioned in the component. |
| Thermal simulation | Predict local temperature distribution, heating history and the location of property-transition regions. |
| Forming simulation | Evaluate material flow and forming behavior when different areas of the blank enter forming under different thermal conditions. |
| Tooling / quenching | Maintain the required part geometry while controlling cooling and final material transformation. |
| Quality validation | Confirm not only dimensions but also that the intended material-property distribution has been achieved. |
| Factor | Fully Hardened PHS | Tailored Press Hardening |
|---|---|---|
| Property strategy | High hardened strength across most or all of the component | Different properties intentionally distributed within the same component |
| Crash design | Well suited to regions dominated by intrusion resistance and high load carrying | Can combine strong regions with areas designed for greater deformation |
| Process complexity | Thermal and quenching control remain critical | Adds local temperature and transition-zone control to the process |
| Engineering dependence | Requires thermal, forming and dimensional validation | Requires those controls plus validation of the intended local-property distribution |
Tailored press hardening is developing at the same time that 3rd Gen AHSS is widening the range of structures that can be considered for cold stamping. These trends should not be viewed as direct substitutes in every application.
3rd Gen AHSS seeks to provide useful combinations of strength and formability through advanced material design while retaining a cold-stamping route. Tailored press hardening uses a thermal forming route and can deliberately create different material-property zones within the finished component.
The appropriate route depends on crash performance, geometry, local strength and ductility requirements, production volume, available equipment, investment and the manufacturer's overall body-structure strategy.
Advanced automotive forming is increasingly shifting from asking only “How strong is this steel?” toward asking “What mechanical behavior is required in each region of the finished component?”
3rd Gen AHSS approaches this problem through increasingly sophisticated material design, while tailored press hardening adds spatial control over properties within the component. Both trends make material behavior, CAE, process design and structural engineering more closely connected.
AP&T's April 2026 tailored press-hardening launch indicates that locally controlled material properties are moving beyond isolated development work toward a broader industrial offering.
Separately, AP&T supplied a SkyLine press-hardening system to Honda's R&D center in Japan in March 2026 for testing and validation of next-generation lightweight forming technologies. This Honda project demonstrates continued investment in advanced press-hardening research, but it should not be interpreted as evidence that Honda has adopted the specific TemperBox tailored-property process.
Combined with the industry's development of larger integrated press-hardened components, these activities suggest that future hot-stamped structures may become not only larger, but also more functionally differentiated within each individual component.
Tailored press hardening is an advanced automotive hot-forming method that creates different mechanical properties in selected regions of one press-hardened steel component.
Hard zones can provide high load-bearing strength and intrusion resistance, while more ductile zones can provide controlled deformation and energy absorption. The intended property distribution depends on thermal processing, forming, quenching and structural design.
Dongguan Changdong Tool & Die Co., Ltd. manufactures custom stamping dies and stamped metal parts. This article analyzes tailored press hardening as an automotive industry trend; Changdong is not presented as a press-hardening furnace, hot-stamping line or TemperBox equipment supplier.
Tailored press hardening creates different mechanical properties in selected regions of a hot-formed steel component by controlling thermal and quenching conditions during the manufacturing process.
Different regions can perform different crash functions. One area may need high strength to resist intrusion, while another may need controlled deformation to absorb crash energy.
“Soft zone” is relative terminology. The region is designed to retain more ductility than the fully hardened zone; its actual mechanical properties depend on the steel and thermal process.
Not necessarily. Tailor-welded blanks combine different sheet materials or thicknesses before forming. Tailored press hardening can create different properties through controlled thermal processing within a component. Some automotive manufacturing strategies may combine more than one tailoring method.
No universal replacement trend should be assumed. Cold-stamped AHSS, 3rd Gen AHSS, fully press-hardened steel and tailored press hardening offer different combinations of material performance, process complexity and production investment.
Dongguan Changdong Stamping Dies CO., LTD. © copyright Add：NO. 56-B, Fuming South Road, Dalang, Dongguan, P.R.C
E-mail: sales@chang-dong.com Tel: 0086-769-8106 1256 Mobile: 0086-189 2949 4380 Sales Manager: Ms. Alice Fax: 0086-769-8106 1926
Dongguan Changdong Tool & Die Co., Ltd. is a custom metal stamping die and stamped parts manufacturer founded in 2012. We support automotive, home appliance, electrical and industrial projects from DFM review and die design to press tryout, sample validation and metal stamping production.
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