Having the right knowledge on Quality Tools enables the effectiveness of solutions deployed.
Critical to Quality (CTQ)
Every product that are launched in the market have characteristics that describe their performance relative to end user, the customer’s expectations and requirements. Some of these expectations can be to get high mileage or fuel economy of a car, having right of packaged goods such as corn flakes or such cereals, star rating related to fuel efficiency to improve power efficiency or lower the losses/cost of power at homes or life of springs or shock absorbers. These are all some of the examples of product characteristics which can also be called CTQ or Critical to Quality requirements.
Taguchi Methods of Quality Control
Quality can be therefore defined or measured in terms of these characteristics. Quality also can be related to loss to the customer or society caused by a product during its life cycle. One of the methodologies which help in addressing quantity is Taguchi Methods. This can be applied in two main areas such as offline and online Quality control. Each of these methods are cost sensitive and have their own decisions to be made.
Offline Quality control refers to the initiation during product development stage in ensuring the right quality of product and processes related to it. Taguchi methods are proven to support quality improvement in early stages of product development. In contrast, online quality refers to the monitoring of real time manufacturing processes to validate and confirm the quality level of products produced. Statistical process controls and six sigma methodologies can be used for online quality assurance and real time correction of any deviations from specifications.
Majority of those who work in engineering and quality domains and familiar with setting up tests to model actual field usage conditions and the cause -effect relationship of design to performance, their knowledge of a proper testing strategy is found to be very limited. The reason is that they work on full-factorial designs. They are not aware of most efficient testing strategy and potential savings in test time and money spent. The design of experiments method – DOE process helps people to easily understand how to utilize the quality improvement method.
Taguchi uses a specific cost model for product characteristics which places more emphasis on reducing variation. More particularly, when the total product variation is within specification limits for the product.
Principles of Taguchi methods of quality control
1. Reduction in various which improves quality of a product or process which in turn reduces loss to society.
2. Proper development strategy can help in systematic reduction of variation. The key outcome expected is to achieve higher quality at lower costs.
Japanese companies have implemented some basic testing and development strategies that allowed them to successfully become world economic forerunners in Quality revolution. Since 1960s, many Japanese engineers were trained in Taguchi’s methods. Nippon Denso, one of the earlier Deming Prize winner has used over 2500 experiments in automotive electrical product design.
Seven Steps Academy of Excellence conducts both in house and public training programmes on Quality and some of the sought after programmes are Lean Six Sigma green belt and Lean Six Sigma black belt programmes as training partner for ASQ South Asia in Bangalore, Ahmedabad as Weekend programmes. Inhouse training programmes on Six Sigma Green belt and blackbelt are offered all over india. Our customers are from locations from Bangalore, Mysore, Hosur, Chennai, Hyderabad, Mumbai, Pune, Calcutta, Gurugram, Neemrana, Pant Nagar, Nagpur, Visakhapatnam.
Some of the Key Topics that are Covered in Quality Management Training are:
Economics of reducing variation.
Design of experiments process.
Orthogonal array selection and utilisation.
Conducting tests.
Analysis and interpretation methods for experiments.
Confirmation of experiment.
Parameter design.
Tolerance design.
Some of the topics covered in Quality Management Training programme are:
Definitions
Measures of Central Tendency
Measures of Variability
Normal Distribution
Standard Normal Transform
Probability Density Function
Cumulative Distribution
Inverse Cumulative Distribution
Discrete Probability Distributions
Normal Approximation of Binomial
Process Capability
Distribution Selection
Hypergeometric
Binomial
Poisson
e-dpu Rational
The Basics
Definitions
Principles
Precision and Accuracy
Shift
Capability and Inspection
Calculating Capability
The Standard Normal Transform
Using Z to Calculate Capability
Exercises
Using iGrafx to simulate process performance
Using Minitab to calculate Capability Analysis
Capability Examples
Continuous Data
Attribute Data
Rolled throughput yeield – RTY
The importance of using RTY
The use of e-dpu to estimate RTY
How to calculate RTY
The impact of complexity on RTY
Also, learning and experience application of the following types of charts:
Normality tests
Histograms
Capability analysis
Marginal plots
Run charts
Control charts
Matrix plots
Draftsman plots
Dot plots
Box plots
Pareto charts
Cause and effect diagrams
Scatter plots
Gauge R& R
How to quantify measurement variation (error)
How to identify the sources of measurement variation
How to assess measurement system stability
How to assess measurement system capability
How to improve the measurement system
Through our Seven Steps Group company, Seven Steps Business Transformation systems, we also take up turnaround projects in deployment of quality initiatives for improving supplier performance. All aspects of product Quality, process Quality and system improvement are taken up in conjunction with Lean manufacturing, Total Productive maintenance as hands on practioners or consultants and consulting companies. Major cost saving, productivity improvement and reduction in Cost of poor quality is experienced by our customers. We also provide training on 5S and help as consulting company in implementation of 5S, TPM, TQM, TOC and six Sigma.
Seven Steps Business Transformation Systems is a Bangalore based consulting company for manufacturing, services, retail, logistics, construction, Education, hospital, hospitality. Kanban system implementation is done as a combination of other tools and methodogies such as 5S, Value Stream Mapping, Cellular Manufacturing, Total Productive Maintenance, Six Sigma etc., Through their group vertical – Seven Steps academy, various training programmes are also offered for both onsite and public programmes.
Some of the flagship training programmes conducted at Seven Steps Academy of Excellence are:
Six sigma Green Belt
Six Sigma Black Belt
Six Sigma Yellow Belt
Skill development programme – Campus to Corporate – Precision Engineering
Applied 5S
TPM
Lean Experimental Learning Programme
