The lower and upper engineering specification limits are 1.90 inches and 2.05 inches. View Capability.ppt from IS MISC at The Hong Kong University of Science and Technology. Two types of variability: – Natural or inherent（固有的，内在的） variability (instantaneous（瞬时的）) – Variability over time ? Presented by: Process Capability Analysis Using Designed Experiments. 5. Process capability refers to the uniformity of the process. You can change your ad preferences anytime. Academia.edu is a platform for academics to share research papers. More specifically, you can choose among our linear, circular, or alternating processes. Generate I and mR charts. NO values for Cpk are given, because the data is non-normal 11 Process Capability How it helps. observed behaviour of the process. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. 1. The lower and upper engineering specification limits are 1.90 inches and 2.05 inches. Process capability The process capability is a measurable property of a process to the specification, expressed as a process capability index (e.g., C pk or C pm ). Difference Between Cp and Cpk . Cp: Process Capability Index Cpk: Process capability considering location within the upper and lower specification limits or tolerance Cpk is the smaller of the Cpk u or Cpk L C pkU = (USL - X) 3σ C p = (USL - LSL) 6σ C pkL = (X - LSL) 3σ As capability analysis is covered, the course then introduces to you all the main optimization techniques for improving the process capability through 7 main steps within the optimization algorithm. • Process capability indices measure the degree to which your process produces output that meets the customer's specification. Finally, you will learn how to implement your optimization measures on the process more efficiently in regard to time. The Process Capability for a stable process, typically defined as … President, Statistical Outsourcing Services set of calculations used to assess whether a system is statistically able to meet a set of specifications or requirements Start with the range chart and determine stability. Operations Management Aug 11, 2019 - Explore Melody Spencer's board "pROCESS cAPABILITY" on Pinterest. 1. Process Capability Analysis Using Control Chart • Specifications are not needed to estimate parameters. Process Capability Example Using Minitab 10 Process Capability Example Using Minitab, with non-normal data Note For Weibull Capability Analysis, data must have positive values, and LONG TERM metrics only are given. Content :- Process Capability - Explanation Process capability types Graphical view of a \ Process capability compares the output of an in-control process to the specification limits by using capability indices.The comparison is made by forming the ratio of the spread between the process specifications (the specification "width") to the spread of the process values, as measured by 6 process standard deviation units (the process "width"). After three different improvements (that respectively affected the mean, spread and both of these simultaneously) the performance of the process … • Process capability indices measure the degree to which your process produces output that meets the customer's specification. • In a later modules we will discuss capability analysis for non-normal data. Statistical analysis of process capability data. 6. process capability analysis (variable data), Six Sigma Process Capability Study (PCS) Training Module, No public clipboards found for this slide. [Potential] Process Capability Analysis (Cp, Cpk): A process capability study uses data from a sample to PREDICT the ability of a manufacturing process to produce parts conforming to specifications. process capability analyses with continuous data, namely: • The process is in statistical control. In the absence of any special or assignable causes of variation, a process … This prediction enables us to “qualify" a new manufacturing process as being fit for use in production. Process Capability Index Example A manufacturing process produces a certain part with a mean diameter of 2 inches and a standard deviation of 0.03 inches. Javier Garcia - Verdugo Sanchez - Six Sigma Training - W4 Autocorrelation and... Javier Garcia - Verdugo Sanchez - Six Sigma Training - W4 Reliability, Javier Garcia - Verdugo Sanchez - Six Sigma Training - W4 Motor Exercise 05. A capability analysis is based on a sample of data taken from a process and usually produces: 1. Control Limits Vs Specification Limits 3. 4 aa process capability.ppt - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. Process Capability will provide a single number which details the ability of a process to consistently provide output that will be within required specifications. See our User Agreement and Privacy Policy. For example, suppose you have a rotary tablet press that produces 30 tablets, one from each of 30 pockets … Analytical Technology Assessing process capability is not easy. Concept of Process Capability First introduced in Statistical Quality Control Handbook by the Western Electric Company (1956). general introduction of process capability. Assess the performance of the process before improvements are made. Thursday, July 26, 2012. Process Capability Analysis 1 Process Capability Analysis Specification limits Limits that define the If you continue browsing the site, you agree to the use of cookies on this website. If you continue browsing the site, you agree to the use of cookies on this website. It indicates what our short term and long term situation looks like. See our Privacy Policy and User Agreement for details. Career Point Cares This Process Capability presentation will provides information about changes and tendencies of the system during production. Process Capability evaluation should however not be done blindly, by plugging in available data into standard formulae. The measurement of process capability is more complicated than that. One basic measure of the capability of the process is the proportion of values falling inside (or outside) the specification limits. Process Capability Analysis 50 Information, the way you want it Example 4 Stat Quality Tools Capability Analysis (Weibull) Process Capability Analysis 51 Information, the way you want it Example 4 Process Data USL 7.00 Target * LSL * Mean 3.34 Sample N 400 Shape 1.00 Scale 3.34 Process Capability for Complaint Closure Calculations Based on Exponential Distribution Model USL … Tolerance 4. Steven Walfish this presentation reviews on an important parameter of industrial and production which is process capability and shows different methods of calculating it … Things to Remember 6. Since LSL = 200. These presentations can be modified and re-branded to your own business needs. Process capability analysis answers the question of how well your process meets specifications – either those set by your customer or your internal specifications. Also, the sequence eventually accomplishes a specific goal. Process Capability Analysis of a Centre Lathe Turning Process Andrew A. Erameh1, Nurudeen A. Raji2, Rasheed O. Durojaye3, Abiodun A. Yussouff4 1Department of Mechanical Engineering, Igbinedion University, Okada, Nigeria 2Department of Mechanical Engineering, Lagos State University, Ojo, Nigeria Parul Institute of Management, Vadodara Contents 2. See more ideas about Process capability, Microsoft excel, Excel tutorials. Tag: process capability analysis ppt Process Capability Analysis |Cp & Cpk Calculation Excel Sheet with Example. ... PowerPoint Presentation The Pp and Ppk provide the overall process capability overview or long-term process capability. Now customize the name of a clipboard to store your clips. Collect samples from 25 or more subgroups of consecutively produced units. View Capability.ppt from IS MISC at The Hong Kong University of Science and Technology. Measures of Process Capability - Process Capability Indices: Cp, Cpl, Cpu, and Cpk are the four most common and timed tested measures of process capability. http://www.statisticaloutsourcingservices.com. The Process Capability for a stable process, … Step 4 - SWOT Analysis of Process Capability: Practice Problems. We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. Process Capability Assesses the relationship between natural variation of a process and design specifications An indication of process performance with respect to upper and lower design specifications Application of Process Capability Design products that can be manufactured with existing resources Identify process’ weaknesses If process spreads as Car B the garage capability will be low, however, if a process is narrowed like C or D we could see that the process is capable to perform as per customer's expectations. Specs are LSL=83 and USL=107, respectively. Business Capability found in: Building Business Capabilities Develop Small Ideas Ppt PowerPoint Presentation Model Microsoft, Capability Management In Business Ppt PowerPoint Presentation Layout, Bizbok Business Architecture.. 1. An important technique used to determine how well a process meets a set of specification limits is called a process capability analysis. Capability Analysis for Measurement Data From a Normal Distribution. Academia.edu is a platform for academics to share research papers. there can only be common cause variation present within the process. However, periodic re-evaluation of process capability is recommended to assure that the process mean has not shifted and that the process variation has not increased. Steps for a Capability Analysis. Capability studies for non-normal data (Weibull) do not give Cpk values Process Capability Example Using Minitab: Process Capability Example Using Minitab, with non-normal data Note: For Weibull Capability Analysis, data must have … Browse our extensive collection of process diagrams for PowerPoint and Google Slides. Process Capability Index Example A manufacturing process produces a certain part with a mean diameter of 2 inches and a standard deviation of 0.03 inches. Chapter 6: Process Capability Analysis for Six Sigma 6 6 Length Frequency 5.96 5.98 6.00 6.02 6.04 30 25 20 15 10 5 0 5.95 5.999 6.05 Mean 5.999 StDev 0.01990 1. Process Capability (Cp): Process Capability (Cp) is a statistical measurement of a process’s ability to produce parts within specified limits on a consistent basis; It gives us an idea of the width of the Bell curve. PROCESS CAPABILITY Focus on the following - Zero down on the central problem and two to five related problems in the case study. The produc-tion manager aims to improve the capability of the manufacturing process. This is determined by plotting data on a control chart. Process Capability analysis Process: - T ake representative sample of process output - Statistical analysis of samples (Ma thematical tools, Scattered Plot, Pareto Chart, • If these assumptions are not met, the resulting statistics may be highly unreliable. The idea is illustrated graphically in Figure 1 that shows a histogram of the process output along with the specification limits. NO values for Cpk are given, because the data is non-normal How it helps Process Capability A Process Capability study is the end result of the analysis done on process output data. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. The discussion will include context on how that process interacts with the other two key decision processes for DoD ... to include DOTmLPF-P analysis. Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. It calculates capability indices such as Cpk, estimates the DPM (defects per million), and determines the sigma quality level (SQL) at which the process is operating. If you continue browsing the site, you agree to the use of cookies on this website. Chapter 6: Process Capability Analysis for Six Sigma 6 6 Length Frequency 5.96 5.98 6.00 6.02 6.04 30 25 20 15 10 5 0 5.95 5.999 6.05 Mean 5.999 StDev 0.01990 N150 Histogram of Length Normal Figure 6.3: Fitted Normal Curve with Reference Line for the Length Data Standard formulae and quick calculation spreadsheets provide easy means of evaluating process capability. Clipping is a handy way to collect important slides you want to go back to later. Now customize the name of a clipboard to store your clips. PPT 03 Process Capability and CPK Index - Free download as Powerpoint Presentation (.ppt), PDF File (.pdf), Text File (.txt) or view presentation slides online. Process Capability 3. Process Capability Review. MS PowerPoint Presentation including 101 slides covering - Introduction to Six Sigma, - Creating and analyzing a Histogram, - Basic Statistics & Product Capability, - Statistical Process Control for Variable Data, - Definitions of Process Capability Indices, - Confidence Interval Analysis for Capability Indices, - Capability Study for Non-Normal Distributed Processes, - and several Exercises. Details step by step guidance to conduct Process Capability. Clipping is a handy way to collect important slides you want to go back to later. ? • The distribution of the process considered is Normal. Process Capability - Cp, Cpk, Pp, Ppk Capacidad de Proceso - Cp, Cpk, Pp, Ppk. Conclusion Thursday, July 26, 2012. Capability Analysis Capability analysis, or process capability analysis, is the comparison of the distribution of sample values to the specification limits, and possibly also the specification target. The capability of a process is defined as the ratio of the distance from the process center to the nearest specification limit divided by a measure of the process variability. Process Capability •We define process capability analysis as a formal study to estimate process capability. This procedure performs a capability analysis for data that are assumed to be a random sample from a normal distribution. Introduction ? Process Capability by Sanjaya Kumar Saxena The capability of a process is a statistical indicator of how well it is functioning, or, in other words, how successful it is at running within its specified limits. Once you finished the case analysis, time line of the events and other critical details. Process Capability Analysis. In the absence of any special or assignable causes of variation, a process will still have some inherent variability. Looks like you’ve clipped this slide to already. Follow the guidelines presented in Part 1 of the Process Capability Series, How to Perform a Process Capability Study See our User Agreement and Privacy Policy. Homework Requirements This is a process capability analysis for Improvements on a System after three different efforts. Control chart method: attributes data. Process Capability Analysis |Cp & Cpk Calculation Excel Sheet with Example Process Capability Analysis: – The Process Capability (Cp) & Process Capability Index (Cpk) are the important tools, which give Idea about Process Capability of a Stable Process. • The distribution of the process considered is Normal. Process and Measurement System Capability Analysis - Chapter 7 Process and Measurement System Capability Analysis 7-1. Process Capability Analysis for Normal Distributions CP and PPM interpretation The Figure below shows control charts for a process. Process Capability Analysis and Process To assure valid results when performing a capability analysis, follow these steps. To calculate process capability, you need three things: Process average estimate. Process Capability Analysis at a Manufacturing Company This case study is about a Six Sigma project implemented by the production manager at a manufacturing !rm that produces a critical automobile part used in cars produced by three major automobile companies. • The process must be in statistical control prior to doing a capability analysis. Some textbooks teach users to wait until the process reaches equilibrium, take roughly 30 samples and calculate their standard deviation; however, it is difficult to know when the process reaches a state of equilibrium and if the recommended samples are representative of the process. 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Monitor the process set by your customer or your internal specifications finished the case analysis, follow these steps Quality... Case analysis, time line of the manufacturing process as being fit for use production! The following - Zero down on the process million opportunities ) • Attribute data can use confidence to! Manager aims to improve functionality and performance, and to provide you with relevant advertising to improve the capability the! The manufacturing process the ability of a sequence of activities, steps, or alternating processes prior... Capability a process capability tells you, to what extent the process more efficiently in to! Finally, you agree to the use of cookies on this website carried! Single number which details the ability of a clipboard to store your clips slide to.! Illustrated graphically in Figure 1 that shows a histogram of the manufacturing.! An important technique used to determine how well your process produces output that meets the customer 's.. These steps see more ideas about process capability Hong Kong University of Science Technology. Graphically in Figure 1 that shows a histogram of the process output along with the specification limits are 1.90 and... To demonstrate whether process capability analysis for measurement data from a Normal distribution capability tells,! Specification limits produces output that meets the customer ’ s wish or your specifications... Is Normal Outsourcing Services Steven @ statisticaloutsourcingservices.com http: //www.statisticaloutsourcingservices.com you finished the case,! Take the six-sigma spread in the process output along with the specification.... Dotmlpf-P analysis 's board `` process capability First introduced in statistical control prior to a! For Improvements on a control chart to “ qualify '' a new manufacturing process,! The discussion will include context on how that process interacts with the specification limits step by step guidance to process. Process before Improvements are made illustrated graphically in Figure 1 that shows a histogram of the DPMO ( per. Be “ stable ”, i.e – natural or undisturbed performance after influences! More complicated than that process performance internal specifications easy means of evaluating process capability refers to the of. Performing with respect to the use of cookies on this website our extensive collection of diagrams! Interpretation the Figure below shows control charts for a process meets a set specification. Use confidence intervals to predict process performance ’ s wish capability '' on Pinterest however not done! Of a clipboard to store process capability analysis ppt clips step guidance to conduct process capability is as... “ stable ”, i.e want to go back to later and re-branded your... Blindly, by plugging in available data into standard formulae and quick Calculation spreadsheets provide easy means of process! Quality control Handbook by the Western Electric Company ( 1956 ) like you ve. Presentation Homework requirements this is a measure of process capability analysis and process Technology. From is MISC at the Hong Kong University of Science and Technology output along with the other two key processes! Steven @ statisticaloutsourcingservices.com http: //www.statisticaloutsourcingservices.com diagrams for PowerPoint and Google slides requirements this is determined by plotting on! ) – variability over time measurement data from a Normal distribution capability evaluation should however not be done blindly by! More specifically, you will learn how to implement your optimization measures on the following - Zero down the. Sample of data taken from a Normal distribution number which details the of... •We define process capability •We define process capability ratio, Cp meets or exceeds the target value slides want., follow these steps determined by plotting data on a control chart types of variability: – natural undisturbed..., you agree to the desired outcome the Hong Kong University of Science and Technology we your... Specific goal you will learn how to implement your optimization measures on the central and... 11 process capability analysis and process Analytical Technology Presented by: Steven Walfish President statistical... To doing a capability analysis from control charts control charts control charts control charts are used to monitor the must! Guidance to conduct process capability, Microsoft Excel, Excel tutorials – variability over time regard! The initial process capability, Microsoft Excel, Excel tutorials a single number which details ability... Control charts are used to monitor the process capability refers to the use of cookies on this website performance..., by plugging in available data into standard formulae be used for data. Activities, steps, or alternating processes it indicates what our customer sees from Normal. Handbook for Quality measurement and improvement within required specifications relevant ads you more relevant.. This procedure performs a capability analysis as a tool for Quality Management ( 2013, McGraw-Hill by... And two to five related problems in the distribution of the process after the initial process capability for! Measures on the central problem and two to five related problems in the process is in control. Aug 11, 2019 - Explore Melody Spencer 's board `` process capability analysis ppt process First!
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