Integrated Quality Control for Rubber-to-Metal Components

Quality in a rubber-to-metal vibration-control component is not created by final inspection alone. Compound batch, metal inserts, surface condition, the bonding system, vulcanization conditions, finishing and assembly can all influence stiffness, bond integrity and durability. GJBUSH translates customer requirements into a controlled quality process that, where applicable, integrates supplier and incoming quality, APQP and PPAP, production controls, inspection, lot release, traceability and corrective action. Quality decisions are tied to the applicable revision, approval status and supporting records.

A Quality System Spanning Project Launch, Production & Continual Improvement

The quality process begins with customer requirements. New developments proceed through requirement alignment, applicable project-definition and development reviews, prototype verification and production part approval. Existing products enter production preparation after current product data, customer requirements and order requirements have been reviewed. Both routes continue into purchasing, production, inspection, storage and delivery.

Supplier management, incoming inspection, outsourced processes, nonconforming-product control, customer complaints and 8D closure are all part of the system. The applicable control points are determined by the component architecture, project requirements and approval status.

Quality Management System Flowchart

Customers

Customer Requirements for Products

Communicate with Customers

Determine Customer Requirements for Products

New Product Development Project Approval

APQP Start

Design & Development

Small Batch Trial Production

Inspection & Testing

Design Review

Prototype Making

PPAP Document Completion & Approval

Product Design & Development

Customer Order Product Information

Review of Customer Requirements

Signing a Contract

Production Preparation (Entering the MES System)

Procurement Plan

Procurement Implementation

Incoming Material Inspection

Material Receiving

Production Plan

Production Plan Implementation

Warehousing & Distribution

Cutting

Outsourcing Orders

Inspection & Testing

Product Warehousing

Customer Inspection

Product Delivery

NG

Not Pass

After-sales Service

Products Existing

Newly Developed Products

Non-conforming Product Review

Concession Acceptance

Return the Goods

Chamfer

Flange
(Optional)

Sand Blasting

Phosphating

Adhesive Coating

Vulcanization

Rubber Mixing

Trimming

Shrinkage

Assembly
(Optional)

Assembly Inspection

Package

Heat Treatment (outsourced)

Qualified for Storage

Rework/Scrap

Outsourcing Processing Workflow

OK

NG

Transfer to the Next Process

Concession Acceptance

Non-conforming Product Review

NG

Process Inspection

NG

Rework

Scrap

Rework Inspection

Non-conforming Product Handling Process

DFMEA/PFMEA/CP

Pass

Supplier Survey

Production Process Flow

Supplier Audit

Qualified Supplier

Supplier Management Process

Supplier Rectification

SPC Monitoring for Key Processes

Customer Complaint

Problem Identification

8D Analysis

Corrective Measures

Verify

Internal Standardization

Customer Complaint Handling Process

NG

OK

OK

Not Pass

Pass

From Requirement Alignment to Production Part Approval

Whether the requirement concerns a new development or existing-product supply, current requirements, risks, verification results and approval status must be translated into defined product and process controls before series production.

Requirements, Revisions & Special Characteristics

Confirm the governing drawing, specification or approved reference sample, together with special characteristics, inspection and packaging requirements, customer-specific requirements and agreed responsibilities.

Risk Analysis & Control Planning

Apply the appropriate APQP activities and connect risk analysis, the Control Plan, validation activities, inspection frequency and reaction plans to the same approved product definition.

Production-Intent Trial & Verification

Record the purpose and build status of each sample, then use intended materials, tooling, equipment, processes and inspection methods to verify readiness for series production.

PPAP & Customer Approval

Prepare the agreed PPAP submission package or customer-specific production part approval documentation, and record the submission level, part revision, approval status and applicable conditions.

Quality Control for Suppliers, Incoming Materials & Outsourced Processes

Rubber raw materials, metal inserts, bonding agents, purchased components and outsourced operations can all affect the finished component. Their source, current specification, lot identity, inspection evidence and acceptance status must be clear before use.

Supplier Capability & Approval Status

Assess supplier capability and quality conditions against the proposed supply scope, then establish the applicable supplier status after any required corrective actions and verification have been completed.

Purchasing Requirements & Material Identification

Communicate the current specification, revision, certification, packaging and traceability requirements so that each external input remains aligned with the project.

Incoming Inspection & Storage Status

Verify identity, batch or lot, status and applicable inspection evidence for rubber materials, metal inserts, bonding agents and purchased components before controlled storage and issue to production.

Outsourced Process & Receipt Verification

Outsourced processes use controlled orders with defined technical and quality requirements. Received product is inspected or tested as applicable before release; nonconforming items remain identified and segregated pending authorized disposition.

Process Control & Inspection as the Basis for Lot Release

Each rubber-to-metal component follows the approved manufacturing route applicable to its architecture, special characteristics and customer requirements. Quality control focuses on execution status, process records, inspection results and responses to deviation at each applicable stage; equipment, manufacturing routes and process methods are detailed on the Manufacturing page.

01.

Production Readiness & Start-Up Verification

Before production and after relevant changeovers, confirm the current order and revision, drawing, process flow, work instructions, Control Plan, tooling, equipment and released materials.

02.

Material & Lot Identity

Within the current coverage of MES and associated quality records, connect the order, production lot, applicable material batches, manufacturing route and inspection status.

03.

Critical Process Status & Parameters

Control metal dimensions and surface condition, bonding-agent application, compound batch, molding and vulcanization conditions, and applicable finishing or assembly status along the approved route.

04.

In-Process Inspection & SPC Monitoring

Use start-up verification, in-process inspection and applicable SPC as defined by the Control Plan. Nonconforming results or adverse trends trigger the defined reaction plan, including stop, segregation, escalation and disposition actions as applicable.

05.

Nonconforming Product & Reinspection

Identify and segregate suspect or nonconforming material, work in process and finished product. Authorized personnel determine the appropriate disposition—return to supplier, rework, scrap or concession—and reworked product is reinspected.

06.

Final Inspection & Lot Release

Release a lot to finished-goods storage, packaging and delivery only after its applicable dimensional, appearance, interface, performance and documentation requirements are satisfied.

Controlled Records for Lot Traceability & Change Management

Effective traceability links delivered parts to relevant external inputs, production history, inspection results and release decisions at the agreed level of granularity. These links are maintained through product and process changes to support audits and problem investigation.

Product & Lot Identification

Applicable lot numbers, date codes, labels, packaging and records provide the link between delivered parts and the corresponding production lot.

Material, Production & Inspection Link

Within the current system and record coverage, lot information connects applicable materials, supply sources, outsourced-process status, production history, inspection results and release records.

Change-Impact Review

Before changing the product definition, material, formulation, supplier, tooling, process route, parameters, inspection method or manufacturing location, assess the impact on performance, production, inventory, approvals and customer requirements.

Validation, Notification & Reapproval

Complete the validation, controlled-document updates, customer notification or reapproval required by the assessed impact before releasing the change into production.

Verified Corrective Action to Reduce Recurrence Risk

Customer complaints and field concerns enter a controlled problem-solving process supported by product, lot, test and production records. Verified findings are fed back into applicable risk analyses and control documents.

Problem Confirmation & Immediate Containment

Confirm the reported condition, related product and lot, field-use conditions and immediate customer requirements, then implement necessary containment for the identified scope.

Problem Definition & Root-Cause Verification

Use returned parts, samples, traceability records, production history and inspection evidence to define the issue and verify the root cause of occurrence, the cause of non-detection (escape point) and any relevant systemic causes.

8D & Corrective Action

Apply 8D or the customer-specified problem-solving method as required, then define and implement corrective actions that address the verified causes.

Effectiveness Verification & Standardization

Verify effectiveness over the defined period or production lots. Where applicable, incorporate verified actions into the relevant FMEA, Control Plan, work instructions, inspection methods, training or supplier requirements.

Quality Capability Built on Auditable Evidence

Supplier qualification, project reviews and factory audits require verifiable quality evidence. Subject to confidentiality, certification scope and project stage, the review may include valid certificates, controlled documents, samples, lot records and problem-closure evidence.

Quality System & Audit Evidence

The system scope, controlled procedures and applicable audit and improvement records show how the quality management system covers actual manufacturing activities.

Project Planning & Production Part Approval Evidence

Where disclosure is permitted, the review may include redacted project plans, risk and control documents, production-intent trial results and PPAP or customer approval status.

Process, Inspection & Traceability Evidence

Redacted records can demonstrate the links among current requirements, external inputs, process status, inspection results, nonconforming-product disposition, lot traceability and final release.

Change & Corrective-Action Closure

Redacted records can demonstrate closure from impact assessment and containment through root-cause verification, corrective action, effectiveness verification, reapproval and controlled-document updates.

Current System Certificates & Applicable Scope

We display current certificates corresponding to the certified entity and manufacturing site, with the applicable standard, certification scope, certification body and validity period clearly identified. Select a certificate to view the full document.

IATF 16949 (certified by SGS)
ISO 14001
ISO 50001:2018
ISO 14001:2015
ISO 45001:2018

Define Project Quality & Production Part Approval Requirements

Before project launch, provide the current drawing or specification, customer-specific requirements, special characteristics, requested PPAP submission level, audit checklist and target timing. GJBUSH will confirm the scope of quality planning, submission documentation, approval gates and lot-control requirements for series production.

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