Eric Hutton – Bodycote’s SVP operations and global technology advisor aerospace, defence and energy, explains how integrating thermal processing within a coordinated, locally delivered network can reduce supply chain risk for aerospace programmes.
Recent disruptions to global shipping routes have highlighted the vulnerability of international logistics, but a significant source of aerospace supply chain risk lies closer to home – within the complexity of programme delivery itself. In critical stages like thermal processing, where safety, consistency, compliance and timing are essential, fragmented processes and multiple supplier interfaces can introduce hidden risks that directly affect programme schedules, qualification activity and component quality.
Aerospace programme supply chains are rarely as straightforward as they appear. Flight-critical components often pass through multiple processes and finishing before assembly.
These steps are essential to final component performance, but each stage may be performed by a different supplier. Even when suppliers are geographically close, spreading processes across multiple providers increases coordination complexity and introduces additional risk into a programme environment where approvals, traceability and repeatability are fundamental.
Supplier interfaces
Aerospace OEMs and Tier 1 suppliers have traditionally reduced supply chain risk through strategies such as dual sourcing, regionalisation, long-term agreements or increased inventory buffers. While these approaches can provide protection, they do not necessarily address the process complexity that sits inside qualified production routes.
Components often require controlled combinations of HIP, heat treatment, thermal spray coating, metal joining, brazing and inspection. These processes directly influence defect closure, microstructure, fatigue life, corrosion resistance, dimensional stability and service performance.
But each transfer of components between suppliers introduces logistical dependencies and scheduling constraints. If one processing stage is delayed, the effect can cascade through downstream operations, first article inspection, NPI activity, ramp-up or delivery commitments. In aerospace programmes, where build schedules are tightly managed and changes are subject to strict approval controls, these delays can have consequences far beyond a single purchase order.
Integrated processing
The value of integrated specialist partners extends beyond the provision of multiple technical processes from a single source. For aerospace programmes, it represents a shift from managing individual subcontracted steps to enabling a more coordinated production and qualification workflow. Processing schedules can be aligned with programme requirements, logistics coordinated across facilities, and treatment sequences planned to minimise handling or delay.
This integration increasingly extends beyond core thermal processes. Capabilities such as metallurgical testing, hardness testing, digital furnace data capture, non-destructive testing support, precision finishing, machining support or laser marking can be incorporated within the same workflow, reducing the need to manage multiple secondary suppliers.
In many cases, integration is delivered locally. Processing is carried out close to the customer’s production operations while being supported by a broader, globally aligned aerospace network. These operations are typically underpinned by requirements such as Nadcap, AS/EN 9100, AMS2750, customer approvals and controlled special-process documentation.
The opportunity to establish common performance metrics across the processing stages involved is equally beneficial. By working collaboratively from the outset to define KPIs, agree scheduling priorities, assign responsibilities and establish escalation routes, aerospace suppliers and their processing partners can create a more transparent operating framework.
This approach allows supply chain risks to be identified and addressed earlier, rather than emerging unexpectedly during production. It also provides greater visibility over processing capacity, lead-times and qualification readiness, which is increasingly valuable where programme schedules, ramp-up plans and customer delivery commitments are tightly managed.
Network resilience
Another advantage is the resilience provided by a broader qualified operational network. When accredited facilities operate to common technical standards, production can be redistributed if capacity constraints arise, if demand peaks unexpectedly, or if a site experiences disruption. This combines the responsiveness of local processing with the flexibility of a broader aerospace footprint.
For aerospace programmes, this redundancy needs to be planned, not improvised. Qualified capacity must be aligned ahead of ramp-ups and transfers, with critical processes approved early and managed at programme level rather than site by site. A global footprint is most valuable when it operates through standardised workflows, consistent quality systems, clear ownership and disciplined change control.
In some cases, multiple specialist processes can be consolidated within a single facility. Combining heat treatment, HIP, vacuum brazing, additive manufacturing densification and laboratory inspection under one roof can significantly reduce handling, improve throughput and simplify scheduling. This enables tighter control over quality, traceability and process consistency.
This ‘under one roof’ approach helps reduce transportation, shorten lead-times and simplify scheduling, while maintaining the certification, traceability and quality controls required for aerospace work, including Nadcap heat treating, AS9100D, ITAR registration and major customer approvals.
For aerospace OEMs and Tier 1 suppliers, this level of vertical integration at a local level provides both operational efficiency and greater control over critical processing stages – while still allowing access to a wider network for additional capacity, qualified back-up routes or specialised capabilities when required.
Increasingly, aerospace OEMs and Tier 1 suppliers are adopting a more collaborative approach. When a specialist processing partner becomes involved earlier in the programme cycle, it becomes possible to optimise processing routes, validate specifications, support design-to-cost discussions and prepare qualification activity before components move into full production. This allows suppliers to access heat treatment and surface engineering as an operational service, improving flexibility while keeping capital focused on core programme priorities.
Experienced metallurgists and process engineers can advise on treatment sequences, identify bottlenecks, interpret specifications, support test optimisation and ensure processing parameters support the required material performance. Shared planning frameworks, agreed KPIs and clear change-control routes help maintain transparency throughout the aerospace supply chain.
Rather than simply performing isolated processing steps, the specialist partner becomes part of a coordinated aerospace programme ecosystem, working alongside design, production, procurement and quality teams to ensure processing operations support component performance, compliance readiness and supply chain reliability.
In practice, process consolidation is not simply about reducing the number of suppliers involved. It is about integrating technical expertise and operational planning to strengthen resilience across the entire programme, from early specification and NPI readiness through industrialisation, ramp-up and long-term production control.
Process consolidation
Recurring events have demonstrated how quickly global supply chains can be disrupted by factors beyond any individual aerospace company’s control. While companies cannot eliminate external risks, they can reduce the internal complexity that amplifies their impact.
Process consolidation offers one practical way of doing so. By reducing supplier interfaces and coordinating specialist processes within a single operational framework, aerospace OEMs and Tier 1 suppliers can simplify logistics, improve scheduling visibility, strengthen quality control and reduce the risk of disruption during qualification, ramp-up and production.
Equally important, integrated processing partners bring technical expertise and operational alignment that help optimise processing routes, define performance metrics early and manage capacity more effectively across a network of qualified facilities. This combination helps ensure that critical processing stages continue to support programme delivery – even when individual facilities, transport routes or demand patterns are disrupted.
In an era defined by uncertainty, resilience often comes from removing complexity. By combining vertically integrated processing, localised delivery and access to a globally aligned aerospace network, suppliers can simplify supplier management, reduce risk and maintain flexibility without significant capital investment. For Tier 1 suppliers under increasing OEM pressure, this model provides a practical way to strengthen programme performance while maintaining the quality, traceability and reliability that aerospace demands.
This article was first published on Aerospace Manufacturing Magazine