existing
production part
review
Review Support
for Stamped Parts in Production
what we
review
Current Drawing and Revision Control
Confirm that the production part, inspection method, tooling, and supplier documentation are working from the same approved requirements.
Fit and Functional Performance
Review how the part locates, retains, conducts, shields, springs, grounds, or mates within the finished assembly.
Tolerance and Datum Strategy
Identify dimensions that are difficult to hold, measure, or interpret consistently and determine whether the datum structure reflects the actual manufacturing and assembly process.
Material, Thickness, and Temper
Evaluate whether the specified material supports the required conductivity, strength, spring force, corrosion resistance, forming behavior, and expected service life.
Tooling Condition and Process Stability
Review signs of die wear, setup variation, inconsistent forming, inadequate maintenance, or tooling limitations that may be causing production drift.
Burr Direction and Edge Condition
Check whether burrs, rollover, fracture zones, sharp edges, or cutoff locations are affecting fit, electrical contact, molding, sealing, handling, or safety.
Plating and Finishing Effects
Evaluate plating thickness, coverage, adhesion, contact areas, solderability, corrosion protection, and dimensional changes after finishing.
Spring Force and Formed Features
Review preload, deflection, retention force, contact position, springback, permanent set, and fatigue-related performance where applicable.
Inspection and Gaging Methods
Determine whether the current method measures the functional requirement, repeats between operators, and provides enough control to detect process drift.
Secondary Operations and Supplier Handoffs
Review tapping, machining, deburring, cleaning, plating, heat treatment, assembly, packaging, and outside processing for added risk or unnecessary cost.
common reasons
to review an existing part
Lot-to-Lot Dimensional Variation
Parts meet requirements inconsistently, or assembly performance changes between production lots.
Assembly Fit or Retention Problems
Components are difficult to insert, align, retain, fasten, or mate consistently.
Burrs or Sharp Edges Are Causing Fallout
Edge condition is affecting assembly, overmolding, electrical contact, operator handling, or finished-product reliability.
Spring Force or Contact Performance Has Drifted
Contacts, clips, or retainers no longer provide consistent preload, deflection, conductivity, or engagement.
Plating Is Affecting Fit or Function
Finish buildup, uneven coverage, adhesion, corrosion, or solderability issues are creating downstream problems.
Tool Wear Is Increasing Scrap or Downtime
The die requires frequent adjustment, produces recurring defects, or no longer holds critical dimensions reliably.
Inspection Results Are Disputed
Different operators, suppliers, or measurement methods produce inconsistent acceptance decisions.
Supplier Quality or Delivery Is Unstable
Recurring escapes, late deliveries, poor communication, capacity limits, or business risk are driving a supplier review.
A Second Source Is Needed
The customer needs backup capacity, risk reduction, reshoring, or an alternate source for a critical production component.
The Program Needs a Cost or Process Review
Material use, secondary operations, inspection, packaging, or supplier handoffs may no longer reflect the most practical production approach.
how the
review is approached
1. Define the Reason for Review
Gromax first identifies whether the main concern is quality, fit, function, cost, tooling, capacity, delivery, or supply risk.
2. Compare the Drawing, Part, and Assembly
The current print, sample parts, inspection data, mating components, and failure information are reviewed together.
3. Identify the Likely Source of Variation
The review considers tooling wear, setup, material changes, forming sequence, plating, gaging, packaging, and downstream handling.
4. Confirm Critical Requirements
Dimensions and characteristics that directly affect product performance are separated from non-critical requirements that may be adding cost or inspection burden.
5. Determine the Practical Next Step
Depending on the findings, the next step may involve a process adjustment, tooling repair, revised gaging, material review, drawing clarification, secondary-operation change, die transfer, or new production tooling.
6. Define Qualification Requirements
First article inspection, capability studies, PPAP, material certification, plating validation, functional checks, or customer-specific documentation can be planned before production transfer or launch.
Helpful Information to Include
• Current part drawing and revision
• 3D CAD model, if available
• Annual volume and remaining program life
• Material, thickness, and temper
• Plating or finish requirements
• Current supplier or production process
• Known quality, delivery, or cost concerns
• Inspection reports or capability data
• Defect samples or photographs
• Mating components or assembly details
• Tooling ownership and condition, if known
• Validation, PPAP, or documentation requirements
• Required production timing
Whether you're developing a new design, sourcing an existing component, or troubleshooting a manufacturing issue, we're happy to take a look.
Do not include any Controlled Unclassified Information (CUI), ITAR-controlled technical data, or EAR-controlled export-controlled information in your initial email/RFQ submission
If your request involves export-controlled or regulated technical data, note this in your email and we will provide secure transmission instructions.
Export Control
& Confidentiality Notice
To comply with ITAR, DFARS, and applicable U.S. export control regulations, Gromax does not display actual customer parts, drawings, specifications, or technical data in public-facing materials.
Images shown are illustrative only and are used to represent Gromax’s design and manufacturing capabilities. They do not contain proprietary, controlled, or export-restricted information.