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打造完美品質全計畫
公差分析軟體CETOL
6σ-- 尺寸標註不費力
由Sigmetrix所開發的知名公差分析軟體「CETOL
6 σ」,可以在設計製程中,與電腦輔助軟體 CAD
無接縫結合,方便針對產品細部,進行修改落實品質管理。利用CETOL 6 σ可分析出的大量數據,如:最大值、最小值、平方根公差、尺寸敏感度、尺寸貢獻度、Cpk
(綜合製程能力指數)…等,各項數值與設計圖型結合並且加以應用。
其中尺寸標註是公差分析當中非常重要的一環。若尺寸標註錯誤,則會大量減低公差分析的準確性;以往尺寸標註皆依賴人工的方式達成,若是設計者出現失誤,極可能忽略正確且必要的標註尺寸;如何減少尺寸標註的錯誤,一直是許多機構設計者關注的焦點。
藉由公差分析瞭解品質尺寸的公差分佈,調整公差條件和產品設計,如;超過標準規格與否,以控制產出品質。
尺寸敏感度:瞭解所有尺寸中,哪個部分微調後,對設計結果的差異性與影響程度。
尺寸貢獻度:瞭解所有尺寸中,調整哪個尺寸對整體設計的影響最大。
Cpk(綜合製成能力指數)值&標準差:是綜合製程準確度Ca與製程精密度Cp兩值之指數計算,設計值的品質尺寸的標準差在多少的範圍。
【特點】
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無接縫連結CAD系統
與電腦輔助設計軟體CAD、Pro/ENGINEER、Solidworks與CATIA無接縫結合,迅速進行公差分析。
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設計與製程完美結合
藉由公差分析,了解cpk值(綜合製成能力指數)並有效利用,將設計與製造結合。
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操作簡單
可在模型上直接設定公差分析條件、保存分析條件。
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以DFSS為設計基礎
實行DFSS(Design
For Six Sigma),並連結公差分析資料庫,提昇設計效能。
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分析結果多樣
結果包括最大值、最小值、平方根公差、尺寸靈敏度、尺寸貢獻度、Cpk
(綜合製程能力指數)…等,可快速判斷公差分析結果,並調整公差設定,達到最佳化設計。
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用於各維度公差累積分析
可用於1D、2D、3D公差累積分析,並選擇組件、尺寸、及幾何公差、註解來建立公差環,藉由公差條件得到分析結果。
【優點】
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快速分析模型的真實統計偏差、西格瑪品質以及個體尺寸的影響和敏感度
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輕鬆地直接在 CAD
模型中加入 GTOL 和尺寸公差
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在元件級別的已保存公差分析中管理
1-D 公差迴圈
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改善面向可製造性的設計
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縮短產品上市時間
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改善產品品質和降低成本
Ease of Use
CETOL 6s
CAA V5 Based is
a comprehensive dimensional analysis system used to support robust
product development processes from design through manufacturing.
CETOL 6s
is built on
3D Variation
Behavior ModelingTM Technology fully integrated with CATIA V5
which allows unique sensitivity, statistical and worst case tolerance
analysis. The CETOL 6s
analyzer module
allows for rapid ‘what-if’ studies, an integrated process capability
library, and powerful reporting tools. CETOL 6s
supports full
CATIA integrated data management saving data directly on the CATIA
model. CETOL 6s
is providing
the ease of use necessary to support the most complex assembly models
and analysis needs.
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Product Highlights
·
Integrated
Workbench –
Directly uses the precise CATIA geometry, FT&A and CATIA data management
system.
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Robust
Assembly Modeler
– Provides the most robust assembly constraint system automatically
solving for assembly positions of all components, even for complex
mechanisms CETOL directly identifies all over and under constraints
insuring a properly constrained model.
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Reliable
Sensitivity and Contribution Analysis
– Advanced iterative solvers are used to calculate very precise
sensitivity and contribution results.
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Expanded
Process Library Architecture
– Process Library offers sorting and filtering control and expandable
process definition using standard database methods.
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Independent
Analyzer Module
– Powerful analyzer
application is optimized for interrogating and interpreting results.
Included is a manufacturing process capability library directly
integrated to the analyzer inter-face.
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Automated
Report Generation
– Automated reporting, complete with easy to interpret graphics. XML
and XSL based architecture allows for easy customization.
Customer Base
CETOL has gained
widespread acceptance in the mechanical design community due to its
seamless integration with CAD systems and flexibility for modeling true
mechanical variation behavior. Most of
today’s premiere 6 Sigma companies utilize CETOL as a
strategic tool during the product development process. Here are just a
few key customers:
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BAE Systems |
Harley Davidson |
Seimens |
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Bombardier |
Honeywell |
TATA Consulting |
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Caterpillar |
ITT |
Tyco - US Surgical |
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Emerson Motors |
Mitsubishi Industries |
Volvo Trucks |
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FN Manufacturing |
Motorola |
Whirlpool |
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Fujitsu Electronics |
Philips |
Xerox |
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General Electric |
Rolex |
ZF |
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Benefits
Sigmetrix has
streamlined the mechanical variation modeling process and enabled users
to get answers early and often. Reductions in rework, scrap, and
engineering changes are common results of proper CETOL implementation.
Additionally, customers are experiencing greater confidence in
transitioning products from the Design Phase to the Pre-Production
phase. Prototype build reductions of 50-75% are common, resulting in
fewer last minute changes which are often very costly.
Testimonials
“The complex interaction between the pawl and the cam
is critical to the operation of this mechanism. CETOL 6s
can accurately model this interaction better than any software on the
market today.”
– Automotive Transmission
Company
“We had many problems with the reliability of this
product. CETOL provided us with the insight necessary to address many of
the problems with this design.”
–
Medical Equipment Company |
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Sigmetrix LLC is
a software development company focused on providing easy-to-use
mechanical variation behavior analysis software for mechanical
engineers. CETOL 6s
has been shipping to customers since 1992 and is distributed through key
distributors on a worldwide basis. Sigmetrix’s unique understanding of
6-Sigma methodologies, CAD integration, and true variation behavioral
modeling has given the company a demonstrated leadership position in
helping spearhead 6-Sigma programs in our customer base.

Visit www.sigmetrix.com
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What is
CETOL 6s?
CETOL 6s
is a complete mechanical variation behavior management solution for Total
Quality and Product Cost Improvement programs. CETOL 6s
has been created to assist design engineers in identifying critical
sensitivities within the assembly and evaluating individual tolerance
contributions to the overall assembly quality. Seamlessly integrated with
CATIA, CETOL 6s
will allow users to precisely model, analyze and allocate tolerances based on
product performance requirements while considering manufacturing process
capabilities on any CATIA V5 assembly. CETOL users benefit from a higher
understanding of assembly behavior leading to higher quality products produced
at a lower cost. CETOL 6s
is a core technology for implementing PLM and Six Sigma methodologies.
Balancing
Design Requirements with Manufacturing Realities
This diagram
illustrates the basic phases of product development. Traditionally, tolerance
analysis was only performed once in the life of a product because the procedures
were very computationally intense and time consuming with results made
unreliable from inappropriate or incomplete data. CETOL has maintained a very
flexible, yet comprehensive modeling approach that allows analyses to be
conducted concurrently with the product development process.

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CETOL can check a design’s feasibility
even before any 3-D solid geometry is created. Through the use of
simple CATIA V5 modeling entities such as planes, lines, curves, and
surfaces, sensitivity data can be calculated and inexpensive changes to
the design or assembly constraints can be implemented. |
 
 
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2
Functional assembly modeling captures all
possible sources of variation and describes the physics of how these
variations affect the assembly specifications. Modeling assembly
variation is accomplished by the user selecting true assembly contact
surfaces within the CATIA environment. |
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3
CETOL directly uses the FTA dimension
scheme callouts for each part in the assembly. The Part Model Graph
interface simplifies the part re-scheming with “drag & drop”
functionality resulting in a logical part dimension diagram. |
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4
The last refinement of the CETOL assembly
variation model is to define part process definitions. Utilizing
CETOL’s Process Library, true manufacturing variation can be assigned.
Combined with physical assembly constraint behavior, a true virtual
prototype is now ready for review. |

誼卡科技顧問股份有限公司
ECARDTECH
Consultant Company Ltd.
總公司:台中市台中港路三段101號3樓
TEL:+886-4-23580336
FAX:+886-4-23580355
分公司:桃園縣大溪鎮埔頂路一段360號
TEL:+886-3-3804575
FAX:+886-3-3075406
http://www.ecard-tech.com.tw
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