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品質・検査
Mar 21, 2018

品質コストの 4 つの基本的なカテゴリは次のとおりです。

1、予防---を計画、実装、および経済的なレベルの品質要求事項への適合性を確保する品質システムの維持にかかるコスト。防止コストの例は、統計的プロセス制御の使用の訓練です。

2、評価---品質要求事項への適合性の程度を決定する際に発生した費用。評価コストの例は検査です。

3、内部エラー---費用、製品、部品、材料が顧客に所有権の移転前に品質要件を満たすために失敗したときに生じた。内部失敗コストの例は、スクラップです。

4、外部障害---製品が顧客に所有権の移転後の品質要件を満たすために失敗したときに発生したコスト。外部失敗コストの例は、クレームです。

品質管理のレベルは、確率論と統計計算によって大部分の決定は、これらのプロシージャが依存しているデータ収集プロセスする適切かつ正確なことが非常に重要です。最高の統計手順は価値のない不良データを取り込む場合、加工のような検査データ収集は、自体の再現性、解像度、精度、正確さの実用的な限界を持つプロセスが。

製造プロセスは精度と繰り返し性の評価と同様、正確さと再現性の点ですべての測定や検査プロセスを定義できます。制御を実験することができますと結果の統計的尺度を検査する部分を基準にして検査の方法のパフォーマンスを確認する行うことができます。1 つまたは他法の適合性は、標準偏差と特定の検査状況で使用されるそれぞれの方法に適用する信頼レベルに基づいて判断できます。    (終了)

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上一条: CK45 継目無管プロセスの要件と配信のプロセス

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