Proces
❖ Identifies potential manufacturing and assembly causes to focus controls on reducing occurrence or increasing detection.
Generating FMEA’s
Who initiates?
FMEA失效模式与效果分析（英文版）
Content of the course
❖ Introduction ❖ Product - FMEA
❖ Blockdiagram , functiontree ❖ Process - FMEA
❖ Process-flowdiagram (macro-level) , micro-level ❖ Facilitatorskills
❖ Identify potential failure modes ❖ Prioritize actions ❖ Document the process.
FMEA – Purpose
Failures
FMEA
CR
Time
(Productionstart)
FMEA – Purpose
FMEA’s are intended to ...
FMEA Sessions
FMEA on chosen FMEA on Architecture Architectures
FMEA on FMEA on EVT Model First Mechanical FMEA on Working Model Part Files
FMEA on L0 Schematics
❖ Evaluation of design relating to DFM DFA DFT
❖ Increases the possibility to detect possible failure modes.
Voordelen – Proces-FMEA’s
Design
❖ Assess effects on all customers
When to discard?
How documented?
When completed?
Who prepares?
Failure MFoMdeEAasnd
Effect Analysis
Who updates?
Who is FMEAcustomer?
Startingdate/ revisiondate?
FMEA – Introduction
Introduction
❖ Why FMEA’s? ❖ Definition, Purpose,
Types, Benefits ❖ Team Approach
Why FMEA’s?
❖ Appropriate recommended actions may not have been taken.
❖ Customer rejections
FMEA – Team Approach
Coreteam
Supportteam
Product-FMEA – Content
Product-FMEA Content
❖ Define FMEA-team ❖ Define scope ❖ Describe functions
• production
• quality
• purchase
• testdept.
• ...
Product-FMEA – Scope
Once coreteam is established ...
❖ Create Blockdiagram ❖ Identify the boundery for Analysis ❖ Confirm composition of support team.
❖ Savings in engineering time. ❖ Reduction of changes
immediately before productionstart (Commercial Release).
FMEA – Definition
Structured group of activities which...
Managing FMEA’s
FMEA’s are living documents and are updated ...
❖ Modification to a product or process is planned
❖ Component is to be used in new environment
❖ Rate severity of failure modes ❖ Identify actions to reduce occurence ❖ Test adequacy of controls
FMEA – Types
ProductFMEA
ProcessFMEA
Mechanical Electrical Optical Mechanical Electrical Optical
» Brainstorming » Function Trees
Product-FMEA – Team
Facilitator
DesignEnginieer
Production/ process-enginieer
Coreteam
Support team
Representitives from:
• development
Blockdiagram
Service
Assembly
Part
Screw Component/
Weld
Part
X
Assembly
Y
User
Other systems
Adhesive
Part Z
Example blockdiagram (Settop Wildfire)
(ftbo L0)
FMEA on L0 Board (ftbo L1)
FMEA on L1 Board (ftbo L2)
Benefits – Producபைடு நூலகம்-FMEA’s
Product Proces
❖ Assess failure mode effects on all customers.
❖ Aids in evaluating testspecifications