Parameter Optimization of Strategies at CNC end Milling Machine Roland Modela MDX - 40R Cam Against Surface Roughness Made Insoles Shoe Orthotic EVA Rubber Foam

The Quality Optimizing of surface and processing time insole shoe orthotic (iso) that made from EVA rubber foam (erf) is highly dependent on the determination of machining strategies on a CNC milling process. This paper aims to obtain optimal parameters of surface roughness and machining time iso products made erf. Data processing by Taguchi Design of Experiments used to obtain the most significant effect on the Toolpath parameters of machining strategies on software Powermill 2015. The effect of the four parameters (spindle speed, feeding, depth of cut, and types of milling cutter) set out in this experiment would give effect significant surface roughness and machining time iso products made erf. Orthogonal array is L1224, after the output finish analyzed the experimental results

Optimization of Mechanical Parameters on Outsole Shoes Orthotic Comfort Using Finite Element Analysis

The shoes selection as the right footwear is very related to the feet comfort, especially in the selection of shoe materials. The shoe consists of three parts: insole, outsole, and upper shoe. The right outsole material will affect the comfort of feet during activity. This paper demonstrates a mechanical testing method on optimization of outsole material based on computer aided engineering (CAE). The outsole design on milutes diabetic patients in previous studies used as the basic design for mechanical testing at CAE. Three types of mechanical testing on Abaqus software 2016: bending, torsion, and plantar plessure used in this paper to determine the optimal outsole material as outsole material shoe orthotik. The test results showed that the material EVA rubber type declared with optimum characteristics of the von mises stress 0.0013 MPa, maximum principal stress 0.0036 MPa and features shock absorption of 5.01562 mJ. This data can served as a basic reference for the process of manufacturing the outsole of shoe on CNC machines

Finite element analysis of a two layer viscoelastic material in contact with a flat punch

This paper presents a normal contact problem between a hard flat punch and a deformable rubber (viscoelastic) material. A Castaldo Gellata Fuschea (SRCGF) material was used for the rubber. Abaqus 6.13 was used to analyze the contact system. Result showed that there is a similarity between the model and the literature for characterizing the viscoeleastic properties

Finite element modeling of the contact between an insole shoe and a ballnose cutter milling

Manufacture process of an insole shoe is quiet challenging. The most problem that frequently encountered is the contact between the cutter milling and the insole material. This paper studied such contact by finite element analysis. The results were presented in the form of von Misses stress distribution as a function of the studied contact parameters

The Evaluation of the Use of AFO (Ankle Foot Orthotics) with the MOXFQ (Manchester-Oxford Foot Questionnaire) Method

This research aims to find the influence of the insole in the shoe for the patient who suffered from disorders of the feet. Diabetic patients generally experience a disruption in the feet. This disorder is a stabbing pain when the patient performs activities. The patient is asked to use footwear Ankle Foot Orthosis (AFO) results of design that are already adapted to the shape of the user's feet during 28 days (4 weeks). At the end of the period, the patient is prompted to answer the questioner that consists of 16 questions. The questions are organized according to Manchester-Oxford Foot of a Questionnaire model (MOXFQ) to assess the response of special foot/ankle and General happens on feet and ankles. The response was measured by a score of 0-4 (strongly agree to strongly disagree) of respondents 2 consecutive female patients experience pain in the feet by using a regular foot, footwear with an average age of 72 years (65 and 80). They independently completed the questionnaire during the use of AFO. The MOXFQ an average of 2 months. The results obtained in the first patients experienced an improvement of conditions of the foot with the score average 3.75 (12/16 answers in the form of a score of 4 and the rest score 3). This means going on a reduction of pain significantly in amount with a percentage score a maximum of 94%. Patient 2 undergoing repair of foot conditions with the average score 2.97. This means going on a reduction of pain significantly in amount with a percentage score a maximum of 74%. The difference is due to the characteristics of the age, weight, height, as well as the profile of the soles of the feet are different. The second patient had a foot condition and a heavier weight

A 3-Dimensional Finite Element Analysis of the Insole Shoe Orthotic for Foot Deformities

In the present study, a 3-dimensional finite element analysis (FEA) of the insole shoe orthotic was developed for analysing foot deformities. The solid model of abnormal human foot was composed of the plantar fascia which was encapsulated by soft tissue (indenture feet) against to the rubber EVA insoles. The models were explored into 3D solid using STL file of scan-foot Handy SCAN 700TM. Data of abnormal foot contour was obtained through the scanning process. Subsequently, 3D solid model of the orthotic shoe insole was generated using the Power SHAPE CAD 2015. The finite element (FE) method of 3D meshes was run on the imported solid model using the software ABAQUS 6:13. Contact interaction between the indenter feet and the orthotic insole shoe was investigated as a function of the various sizes of shoe insole. Strategy of curve-based surface modelling (CBSmodelling) was adopted to obtain surface and solid models of the orthotic shoe insole. The sizeof the gap between the soles of the feet to the width of the designed insole was obtained. The simulation results show that the FEA of the solid model provides the variation of von Misses stress on each insole with a predetermined gap width. In the 3D solid model, the optimum shoe orthotic insole peak has maximum von Misses stress of 1.19x10-3 MPa which exists on the heel bone with the gap width of 1.75 mm

Investigation of Optimal Proses Parameters in CNC Milling of Insole Shoe Orthotic using Taguchi - Fuzzy Approach

The surface quality and processing time for insole shoe orthotic (iso) made from EVA rubber foam (erf) is highly dependent on the input machining strategies during a CNC milling process. This paper aims to clarify the application of Fuzzy Logic integrated with the Taguchi method to minimize the surface roughness and maximize Material Removal Rate (MaRR) that for iso product with erf based on CNC Rolland Modella machines. In this research, the input parameters specified are feed, DOC, and the composition of erf. In Taguchi method, orthogonal array design L 824 which consists of three factors and mix level and S/N will be calculated. S/N ratio of roughness and MaRR will be entered into the system of fuzzy logic and output received is multi response performance index (MRPI) with application ANOVA, DOC and feeds. Based on the result, it can be concluded that the optimal level for Erf is level 2 (3 Slice), feed is level 2 (2000 mm/min) and DOC is level 1 (2.5mm) with the Ra=9.679 µm and MaRR=61,200,000 mm/min

OPTIMIZATION OF THE PARAMETERS OF THE MANUFACTURING PROCESS OF THE PRODUCT ISO_DIABETES FOR PATIENTS WITH HIGH RISK CLASSES

Reverse innovative design (RID) on the insole shoe orthotic for diabetics (iso_diabetes) was able to speed up the design and manufacturing of products with the quality of the surface requested appropriate patients. The accuracy of the scanning results with 3D CAD insole that conforms with the shape and contour of the patient's foot will certainly make things easier in the process of manufacturing in CNC machines. Problems encountered in this paper is to determine the design of the iso_diabetes the most optimal process of experimentation with doing manufacturing in CNC machine Rolland Modela MDX 40R. The strategy finishing raster machining 45 0 and step & shallow machining in CAM Powermill 2016 applied to get a pair of iso_diabetes from each patient. Two diabetic patients designated as research subject . Lay out experiment with orthogonal array L 84.23 set on this paper to get iso_diabetes type optimal based on the values of surface roughness (Ra) and processing time the (Ta) obtained. Experimental results show that the design of the iso_diabetes type 0.75 mm is the most optimal design with surface roughness approaches 0.0069 mm and time machining around 4.20 hours for both patient. Keywords: toolpath strategy, raster finishing 450 , step & shallow, PowerMill 2016 surface rougness, iso_diabetes

Finite element modelling of the insole shoe orthotic for foot deformities

A finite element models to (FEM) of the human foot, especially the experience of foot deformities such as pronation, Metatarsalgia, Flat Feet, Neuroma, Plantar Fasciitis, Arch Pain, and diabetes can be quickly developed and dealt into 3D solid .STL file using foot scan IQube 550. Solid abnormal human foot model consists of plantar facia and encapsulated soft tissue (indenter feet) with EVA rubber insole will be built into a 3D solid orthotic shoe insole in PowerSHAPE CAD 2015 then imported into the software ABAQUS 6:13 into 3D meshes FE analysis. Contact interactions that occur and be studied is between the indenter foot with shoe orthotic insole designed in various sizes. Abnormal foot contour obtained by the scanning process. Strategy curve-based surface modelling (CBS-modelling) was applied in this paper to obtain surface and solid models of shoe orthotic insole. 3D will be made some orthotic shoe insole to provide the size of the gap between the soles of the feet to the width of the insole designed. EVA rubber is used as an insole material. FEM analysis is used to obtain von misses stress from loading that varies on each insole with a predetermined gap width. The prediction results with FEM Abaqus 6:13. The result of the 3D solid with optimal insole shoe orthotic peak of 1,190x10 3 MPa von misses stress on the heel bone to the gap width of 1.75 mm

Reverse innovative design from 3D mesh to 3D model of insole shoe orthotic

In the context of today's manufacturing industry, all product innovations are designed and developed using CAD software (Computer-Aided Design). To visualize an insole shoe orthotic product (iso_product) corresponding to the contour reliefs malformed legs due to illness (foot deformities) the geometry model of the foot should be described in detail in the form 3D mesh solid. In addition, the designer's iso_product are embracing a wide range of digital 3D design application, such as foot IQube 3D scanning, 3D CAD PowerSHAPE 2015, Reverse Engineering, CAE Analysis and Rapid Prototyping CNC machine. This paper will describe in detail the stages of reverse engineering design (RID) to get a pair iso_product in people suffering from foot deformity. The process begins with the initial scan to get a foot in the form of 3D meshes .STL File. Scanning is done in a few feet of the Indonesian people over the mid age 40’s to 70’s and weight range of 30-90 kg and with condition suffering from deformities foot. Strategy solid modeling as the curved-based modeling that used in this paper to get the 3D surface and solid modeling iso_product that fit the relief contour of the scanned foot. In the early stages of this paper the results shown are for normal people's feet, but the future will show some 3D surface and solid modeling and the results of Finite Element (FE) models for people suffering from foot deformities