The Design of Experiments as a Methodological Framework for the Improvement of Manufacturing Processes

2020 ◽  
pp. 270-298
Author(s):  
Sukey Nakasima-López ◽  
Mydory Oyuky Nakasima-López ◽  
Karla Frida Madrigal Estrada ◽  
Erika Beltrán Salomón
Keyword(s):  
Design Of Experiments ◽  
New Products ◽  
Manufacturing Processes ◽  
Methodological Framework ◽  
Maintenance And Repair ◽  
Cycle Times ◽  
Innovative Products ◽  
Quality Of Products ◽  
Different Levels

Industries seek changes in manufacturing processes by designing or redesigning them, to improve the quality of products, reduce costs and cycle times, change materials, modify methods, design innovative products, among others. Facing these demands requires a powerful methodological framework known as Design of Experiments. Most of literature focuses on the application of these techniques in the areas of statistics and quality. However, the variety of problems facing engineers in industry is wide and includes different levels of complexity, ranging from the design of new products, improvement of design, maintenance, control and improvement of manufacturing processes, maintenance and repair of products, among others. This chapter provides the reader different applications of this methodology in industry, to highlight the importance and benefits of knowing and applying these techniques. It will present the application of this methodology in a general way and finally, it will discuss different case studies that use this methodology in industry.

scholarly journals Performance Evaluation Using Multivariate Non-Normal Process Capability

Processes ◽  
2019 ◽  
Vol 7 (11) ◽  
pp. 833 ◽  
Author(s):  
Alatefi ◽  
Ahmad ◽  
Alkahtani
Keyword(s):  
Manufacturing Industry ◽  
Process Capability ◽  
Quality Characteristic ◽  
Process Capability Indices ◽  
Manufacturing Processes ◽  
Capability Indices ◽  
Skewness Reduction ◽  
Quality Of Products

Process capability indices (PCIs) have always been used to improve the quality of products and services. Traditional PCIs are based on the assumption that the data obtained from the quality characteristic (QC) under consideration are normally distributed. However, most data on manufacturing processes violate this assumption. Furthermore, the products and services of the manufacturing industry usually have more than one QC; these QCs are functionally correlated and, thus, should be evaluated together to evaluate the overall quality of a product. This study investigates and extends the existing multivariate non-normal PCIs. First, a multivariate non-normal PCI model from the literature is modeled and validated. An algorithm to generate non-normal multivariate data with the desired correlations is also modeled. Then, this model is extended using two different approaches that depend on the well-known Box–Cox and Johnson transformations. The skewness reduction is further improved by applying heuristics algorithms. These two approaches outperform the investigated model from the literature because they can provide more precise results regardless of the skewness type. The comparison is made based on the generated data and a case study from the literature.

scholarly journals Kualitas Produk Dan Pelayanan Restoran Cepat Saji Dalam Menghadapi Pesaing di Kabupaten Sumenep (Studi Pada Toby’s Fried Chicken)

2020 ◽  
Vol 1 (2) ◽  
pp. 25-30
Author(s):  
Very Andrianingsih
Keyword(s):  
Fast Food ◽  
New Products ◽  
Sampling Technique ◽  
Business Owners ◽  
Fast Food Restaurants ◽  
Using Data ◽  
Quality Of Products ◽  
Strategic Market ◽  
Good Attitude

Product quality and service affect the progress of a restaurant. The rise of business competition requires businesses to continue to innovate so as not to compete. Restaurant business owners must always maintain and improve the quality of their products and services. The quality of products and services is a means to compete with competitors. Quality products and services will help restaurant business owners to get a strategic market position. This study aims to find out how the quality of Toby’s Fried Chicken products and services in Sumenep Regency. The sampling technique in this study used Purposive Sampling by determining key informants as many as 1 person, 2 main informants, supporting informants as many as 5 people and using data collection techniques, including observation, interviews, and documentation. The results of this study indicate that Toby’s Fried Chicken products in the latest Fried Chicken products are still undercooked, Toby’s Fried Chicken has not released a variety of new products with a steady innovation. The service of Toby’s Fried Chicken is quite good with the good attitude shown by the waiter, but for the arrangement of the place there is no attractive design to be enjoyed by customers. Toby’s Fried Chicken continues to maintain and improve its quality, both in terms of products and services to be able to compete with fast-food restaurants like Toby's.

Burn-in and Maintenance Policies

1994 ◽  
Vol 26 (1) ◽  
pp. 207-221 ◽  
Author(s):  
Jie Mi
Keyword(s):  
Preventive Maintenance ◽  
Minimal Repair ◽  
Maintenance And Repair ◽  
Cost Structures ◽  
Related Cost ◽  
Optimal Maintenance ◽  
Maintenance Policies ◽  
Quality Of Products ◽  
Age Replacement

Burn-in is a widely used method to improve quality of products after they have been produced. For a repairable component there are two common types of repair, complete repair and minimal repair. Preventive maintenance policies such as age replacement and block replacement are often employed in field operation. The present paper takes burn-in, maintenance and repair into consideration at the same time and considers related cost structures. The properties of the corresponding optimal burn-in times and optimal maintenance policies are discussed.

Burn-in and Maintenance Policies

1994 ◽  
Vol 26 (01) ◽  
pp. 207-221 ◽  
Author(s):  
Jie Mi
Keyword(s):  
Preventive Maintenance ◽  
Minimal Repair ◽  
Maintenance And Repair ◽  
Cost Structures ◽  
Related Cost ◽  
Optimal Maintenance ◽  
Maintenance Policies ◽  
Quality Of Products ◽  
Age Replacement

Burn-in is a widely used method to improve quality of products after they have been produced. For a repairable component there are two common types of repair, complete repair and minimal repair. Preventive maintenance policies such as age replacement and block replacement are often employed in field operation. The present paper takes burn-in, maintenance and repair into consideration at the same time and considers related cost structures. The properties of the corresponding optimal burn-in times and optimal maintenance policies are discussed.

scholarly journals INFLUENCE OF FAILURE-FREE OPERATION LEVEL ON COSTS RELATED TO PRODUCTION AND GUARANTEE SERVICE OF INNOVATIVE PRODUCTS

2018 ◽  
Vol 21 (3) ◽  
pp. 115-124
Author(s):  
I. M. Ter-Saakova ◽  
N. I. Podalyakina ◽  
V. A. Khodakovsky
Keyword(s):  
Economic Model ◽  
Probability Of Failure ◽  
Product Reliability ◽  
Innovative Products ◽  
Domestic Use ◽  
Fail Safe ◽  
Production And Operation ◽  
Different Levels ◽  
National Consumption

Basis of market of national consumption is presently formed by non-redundant products. Reliability of these devices is wholly determined by the level of failure-free operation of their constituents. With the industrial products of the non-domestic use redundancy both in the repaired and non-repaired equipment is used on different levels: redundancy at the level of components, blocks and units on the whole, and also at the level of elements (deep fractional redundancy).To make a forecast on the share of products that fail during operation, one can know the probability of failure-free operation of the product for a certain time. The article gives the indicator of the probability of failure-free operation of the product – a quantifiable estimated value, which is calculated as the ratio of the undisclosed number of products to their total number. The graph characterizing the changes in the probability of failure-free operation of the products is given. It is assumed that the probability of failure-free operation of articles varies exponentially. The construction of an economic model based on the category of fail-safe products is considered. This model is built taking into account the condition that the product guarantees issued by the manufacturer should be correlated with the number of possible failures of the products during this time. The conclusion is made that the product reliability category is the only category of risk assessment of the manufacturer on the market when issuing guarantees for its products. The assumption is made that the price of improving the reliability can be different and depends on many circumstances, but always increase of the product reliability is associated with an increase of its cost. The problem is solved, due to the fact that some of the products supplied by the manufacturer to the market will fail. Thus, it is necessary to know the proportion of failed products, which is determined by the quality of manufacture and reliability of the product put in the process of its design and production. The graph of the dependence of the total costs for the production and operation of innovative products on the probability of their trouble-free operation is given. The main advantages of the proposed economic model are formulated.

scholarly journals An innovative concept for the technology of jelly-fruit marmalade using vegetable cryopastes

2021 ◽  
Vol 30 ◽  
pp. 01004
Author(s):  
Maiia Artamonova ◽  
Natalia Shmatchenko ◽  
Tetyana Gavrysh ◽  
Liudmyla Pikh
Keyword(s):  
Vitamin C ◽  
Quality Indicators ◽  
New Products ◽  
Colour Intensity ◽  
Physicochemical Quality ◽  
Increase Productivity ◽  
Quality Of Products ◽  
Β Carotene ◽  
Innovative Concept

The results of research on the innovative concept of the technology of jelly-fruit marmalade with vegetable cryoadditives from carrots and pumpkin are presented. The use of innovative developments in marmalade makes it possible to increase productivity and improve the quality of products. It is shown that organoleptic, physicochemical quality indicators of marmalade with plant additives meet the requirements of current regulations, the colour intensity is maintained. The new products have an increased content of vitamin C, β-carotene and pectin.

scholarly journals Fashion Design from Woven Fabrics of Community Enterprise Group

2016 ◽  
Vol 12 (3) ◽  
pp. 31
Author(s):  
Nirat Soodsang
Keyword(s):  
Career Advancement ◽  
Sampling Design ◽  
Woven Fabrics ◽  
Enterprise Group ◽  
Fashion Design ◽  
Manufacturing Processes ◽  
Satisfactory Level ◽  
Research Procedure ◽  
Quality Of Products

<p>The objectives of this study were to 1) design fashion and bags from woven fabrics of the community enterprise group in Pitsanulok province 2) compare the quality of products based on the criteria used to measure community products classified by features, genders, level of income and 3) present a prototype from local woven fabrics in Pitsanulok province. The research procedure includes the sample group which incorporates 67 consumers in their working ages. Accidental sampling design was implemented. The instruments were modified and validated by the standard of community products scp. 196/2003 entitled handmade products from fabrics quality assured in terms of the product neatness, benefits, materials, and manufacturing processes as well as marketing possibility and career advancement. The results were that the fashion design and bags from the local woven fabrics proposed as the prototype had their own valued adding and could be able to market. As regards the quality assurance, the satisfactory level was good. Also, when the satisfactory level of the consumers towards the products were compared regarding genders and level of income, there was no significant differences found.<strong></strong></p>

Developments in Tribology of Manufacturing Processes

2020 ◽  
Vol 142 (11) ◽  
Author(s):  
S. R. Schmid ◽  
P. K. Saha ◽  
J. Wang ◽  
T. Schmitz
Keyword(s):  
Metal Forming ◽  
State Of The Art ◽  
The State ◽  
Manufacturing Processes ◽  
The Past ◽  
Quality Of Products

Abstract Tribology in manufacturing has seen tremendous development in the past 100 years and essentially was transformed from a known and unavoidable nuisance to a sophisticated discipline. This is demonstrated by the reliability and quality of products that result in modern metal forming and cutting. This paper provides a brief summary of the state-of-the-art in manufacturing tribology, discussing some of the important developments in the field.

La lezione di Steve Jobs: una riflessione italiana

2012 ◽  
pp. 201-214
Author(s):  
Giorgio De Michelis
Keyword(s):  
Interaction Design ◽  
Quality Level ◽  
High Quality ◽  
Innovative Products ◽  
Steve Jobs ◽  
New Perspective ◽  
Quality Of Products ◽  
Very High ◽  
Situated Computing

In this paper we discuss the lesson that the legacy of Steve Jobs as an entrepreneur leaves to us, with a particular attention to what we, in Italy, can learn from it. Three are the issues we take into consideration: innovation, organization and sustainability. With respect to the first of them, we compare the way Apple has created its innovative products with the innovation done by other companies like Google and Facebook, to argue that Jobs was practicing at a very high quality level interaction design. With respect to organization, we stress that Jobs has paid great attention to the creation of durable company and we suggest a parallel between him and Adriano Olivetti. Finally, we show that sustainability has been considered as important, but after the quality of products. We conclude the paper with two provoking claims: first, we claim that Apple can be considered as a representative of the Italian Way of Doing Industry; second, we suggest a new perspective to create innovative applications of ICT, beyond Apple, called situated computing.

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