Design Profit, Inc Apps

The Weight Reduction Material Selector (WeRMS)is a tool which can help you make your design lighter. If your partor assembly is too heavy, simply enter the material it is made outof, the structural property you would like to keep constant, andthe types of materials you are willing to consider as replacementsinto WeRMS. WeRMS will then generate a list of materials which canreduce the weight in your design and tell you about how much moneyeach material will save or cost you per pound. WeRMS is a simpleway to generate a lot of quick ideas for weight reduction.This app is a comprehensive material selector which willconsider a material of construction, and based on one of severalavailable structural translations, perform an analysis which willidentify the best path for saving weight in a part or structure. Aset of calculations are performed to identify the relationshipbetween cost increase and ultimate weight saving in percent. Thissystem provides sliders used to determine which material systemsare the early solutions (minimum weight saving at minimum costpenalty or even maximum cost savings) and which substitutions willprovide the largest percentage weight saving at the greatest costpenalties.This software is supported by a materials database which listsaround 600 separate materials (metallic, ceramics, and organics)and evaluates several physical and mechanical properties. Manyrecognized source material databases were used to build the fullset of necessary properties for evaluating relative performance.Any of the around 600 listed materials may be used as the startingbasis for this comparison.The “Structural Equivalence” is calculated, based on thefollowing textbook translations:1. Equivalent Bending Stiffness2. Equivalent Bending Strength3. A Blend of Bending Strength and Stiffness4. Equivalent Uniaxial Strength5. Equivalent Uniaxial StiffnessSeveral application filters are provided and seamlessly appliedto limit the selection of available materials. As a first filter,the response may be separately restricted to the choice of a metal,a ceramic, or an organic (which are plastics and composites).Beyond this an applications filter is added to evaluatetemperature, chemical, opacity, and impact performance. These areconveniently grouped as environments: Household, Hospital,Automotive, and Military; each with its unique set of requirementsnecessary for the successful introduction of the given materialinto this environment.The use of this tool allows the user to rapidly identify thehierarchy of materials which will provide a weight benefit at thecontained minimum cost penalty or maximized cost savings. It offersthe advantage of a consistent and neutral price and propertiesdatabase, and avoiding the need for a “trial and error”solution.

Is your part or assembly too heavy? Get WeRMS!

The Six Sigma Defect Rate Converter Free Version can determineanythree of Defect Rate in Parts Per Million (PPM, also calledDefectsPer Million Opportunities or DPMO), Process Capability Index(Cpk),Right First Time (RFT, also called First Time Yield or FTY),orSigma level from the other one. Simply enter one of thevalueswithin its proper range and the Six Sigma Defect RateConvertertells you the other three!

The Six Sigma Defect Rate Converter can determine any threeofDefect Rate in Parts Per Million (PPM, also called DefectsPerMillion Opportunities or DPMO), Process Capability Index(Cpk),Right First Time (RFT, also called First Time Yield or FTY),orSigma level from the other one. Simply enter one of thevalueswithin its proper range and the Six Sigma Defect RateConvertertells you the other three!