Quality Control in Manufacturing Processes

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Questions and Answers

Idle condition never touch anything is considered an intentional change.

False (B)

Personnel transfers without training must be confirmed as an intentional change.

False (B)

Foil lot change is listed under Nissha Japan (Kameoka) as an intentional change.

True (A)

Mold polishing is categorized under incidental change.

<p>False (B)</p> Signup and view all the answers

Replacement of the cavity inserts is considered an intentional change.

<p>True (A)</p> Signup and view all the answers

Mold breakdown is classified as an incidental change.

<p>False (B)</p> Signup and view all the answers

Visual inspection/Product dimensions are associated with both personnel transfers and measuring equipment updates.

<p>True (A)</p> Signup and view all the answers

A process change is required when the measuring equipment is repaired.

<p>False (B)</p> Signup and view all the answers

Visual inspection is used in the production sampling inspection process.

<p>True (A)</p> Signup and view all the answers

CNC production sampling inspection does not involve boss pin height measurements.

<p>False (B)</p> Signup and view all the answers

Overall measurement is part of the production sampling inspection process.

<p>True (A)</p> Signup and view all the answers

Boss pin height is never considered in visual inspection.

<p>False (B)</p> Signup and view all the answers

The validation of process window suitability does not use visual inspection.

<p>False (B)</p> Signup and view all the answers

The production sampling inspection includes both the measurement of control points and the boss pin height.

<p>True (A)</p> Signup and view all the answers

Overall measurement is conducted only once during the production sampling inspection.

<p>False (B)</p> Signup and view all the answers

Replacement areas are not included in the inspection procedures.

<p>False (B)</p> Signup and view all the answers

Flashcards

Intentional Change

An alteration made to a product or process based on a deliberate decision, often involving modifications to specifications or design.

Incidental Change

A change that occurs unintentionally during production, often as a result of unforeseen circumstances or variations in materials.

Material Change

An example of an intentional change, where the material used in the manufacturing process is deliberately switched.

Process Change

An example of an incidental change, where the manufacturing process is altered without a planned decision, potentially due to unforeseen circumstances.

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Resin Lot Change

An example of an incidental change, a switch to a different batch of resin used in manufacturing.

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Foil Lot Change

An example of an incidental change, a change in the lot of foil used in the manufacturing process.

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Mold Correction

An example of an intentional change, modifying the mold significantly, leading to a change in the quality of the product.

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Quality Issues

Specific examples of potential quality issues that can arise due to incidental or intentional changes during the manufacturing process.

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Boss Pin Height

A critical measurement point checked during production to ensure consistent quality.

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Production Sampling Inspection

A sampling method used during manufacturing to verify that products meet quality standards.

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Overall Measurement

These inspections focus on verifying the overall dimensions of a product to guarantee its functionality and fit within a larger assembly.

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Visual Inspection

A visual examination where inspectors look for defects, flaws, or inconsistencies in the product's appearance.

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Control Point

A specific location on a product where a precise measurement is taken to monitor manufacturing consistency.

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Validation of Process Window Suitability

The evaluation of a manufacturing process to determine if it's capable of consistently producing products that meet specific requirements.

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Overall Inspection

A comprehensive inspection that combines multiple checks, such as visual inspection and dimensional measurements, to ensure the quality of the product.

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Relevant Areas

This process involves looking at key areas of a product, such as dimensions related to replacement parts, and ensuring that they're accurate and properly made.

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Study Notes

Incidental and Intentional Change List

  • A list tracks changes, categorized as incidental or intentional.
  • Confirmation and communication are required for these changes.

Quality Control Procedures

  • Checks include quantity, overall measurements, and replacement part measurements for impacted areas.
  • Visual inspections cover various defects: white marks, dryness, uneven coloration, black/white lines, fading, bleeding, color tone, anti-glare issues, moire, cloudy areas, polarized visibility, ink flow, air bubbles, weld lines, foil cracks, sink wrinkles, and sink marks.
  • Process changes involve resin lot, material, foil lot, and mold changes.

Mold Maintenance and Repair

  • Mold touch is not permitted in idle conditions.
  • Routine maintenance includes normal service, spare part replacement, and mold polishing/correction.
  • Cavity (CAV) insert replacement and mold grain insert procedures are detailed.
  • Mold breakdowns require repair.

Process Adjustments

  • Process adjustments can be within or outside the process window.
  • Process window range reviews are necessary.
  • Process changes and design changes affect foil procedures.

Personnel Changes

  • Personnel transfers without training are noted.
  • Personnel transfers with training are also documented.

Measuring Equipment

  • Measuring equipment maintenance and repairs are listed.
  • Equipment updates are included.
  • Production sampling inspections and overall measurements are conducted.
  • Control points and boss pin heights are measured during sampling.
  • Inspections might focus on dimensions of replacement parts.

Validation

  • Validation of process window suitability is a required step.

General Notes

  • Parts should be replaced, not repaired.
  • Construction/repair without permission from the Kameoka Factory is prohibited.
  • Contact the factory manager or Kameoka Factory for cases outside the documented list.

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Related Documents

Incident Change List 11 PDF
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