TE 302: Basic Weave Characteristics
Plain Weave Characteristics
1. Adjacent ends weave opposite of each other.
2. Repeats on two ends and two picks.
3. Highest number of interlacings possible.
4. Produces firmest fabrics.
5. Great resistance to wear.
6. O
TT-TE 533 Lean Six Sigma
Lean Six Sigma
Fractional
Factorial
Experiments
B3_05_1
Six Sigma Fractional Factorial Experiments
Introduction
Objective:
To screen the list of remaining input
variables to isolate those significant
factors affecting the response
TT-TE 533 Lean Six Sigma
Lean Six Sigma
2 Factorial
Experiment
s
K
B3_04_1
Six Sigma 2K Factorial Experiments
2K Factorial Experiments
To develop a mathematical
relationship between the
significant factors and the
response variable.
Y=f(x), Mathematical M
TT-TE 533 Lean Six
Sigma
Design of experiments
TT-TE 533_
TT-TE 533 Lean Six
Sigma
TT-TE 533_
Objectives
TT-TE 533 Lean Six
Sigma
Understand why designed experiments are used
during the Improve stage of a project
Define design of experiments (DOE) terms
D
LEAN SIX SIGMA
March 18, 2016
A. Blanton Godfrey, Ph.D.
Joseph D. Moore
Distinguished University Professor
NORTH CAROLINA STATE UNIVERSITY
TODAYS OBJECTIVES
Discussion on test results and
questions.
Quiz at 8:40
Burlington Industries projects
TODAYS OBJEC
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TE-533
Pallavi Singh
Dr. Godfrey
NORTH CAROLINA STATE UNIVERSITY
TE/TT/TTM 533
Lean Six Sigma
Final Take-Home Exam
Due on May 1, 2016
The final exam for TE/TT/TTM 533 is in two parts, an in-class part and a takehome part. This part, a take-home exam, expl
Table 2 Newspaper Errors - Weekly Averages
Month
Week 1 Week 2
March
19.8
16.8
April
14.2
13.4
May
8.6
12.8
June
15.4
15.0
July
14.0
13.4
August
13.2
12.2
September
15.5
8.2
October
6.2
7.0
November
5.2
5.2
December
8.2
*
* Data not available for this wee
Measurement System Analysis
The department has a measurement system for measuring the diameter of metal parts.
Data from the measurement system is used to determine if the parts are within
Specification. A measurement system analysis (MSA) was conducted t
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TT-TE 533 Lean Six
Sigma
Introduction to Lean Six
sigma
TT-TE 533_
Objectives
TT-TE 533 Lean Six
Sigma
Define Six Sigma
Provide a brief history of Six Sigma
Discuss the benefits of a Six Sigma deployment
Introduce the DMAIC problem solving process
Discuss
Fluid Mechanics Problem #5:
Find the velocity, mass flow rate
(in kg/s) and the impact force
(exerted on a fixed rigid plate)
of a hydroentangling waterjet
discharged from a manifold at
200 are pressure if the nozzle
diameter is 128 micron.
Repeat the abo
TE 302: Weave Room Eciency Example
Denitions:
x The average number times the loom stops per minute.
c The average repair time (min) per stop. In other words, c is the average time the weaver stops at a
loom to repair it. It is calculated by dividing the t
TE 302: Design of DID and CP
For the following Fancy Diamond design, derive the drawing-in draft and the chain-plan using
the minimum number of harness frames.
TE 302: Winding Eciency Calculations
1. A Scharer precision winder running at 350 yards/min is used to wind 5 lb. cones of 210
den. nylon yarn. What is the minimum time required to wind a package using this winder?
It is known that the winder is down 3.0
TE 302: Warping Eciency Example
Given:
Number of ends/section beam
Yarn number
Warp beam capacity
Warping speed
Yarn package weight
End break rate
Time to repair a break
Dong time / beam
Comb threading time
Creeling time / position
Headstock (or creel cha
TE 302: Warp Knitting Production Calculations
Given:
Number of machines
Type of fabric
Relaxed fabric width
Relaxed courses per inch
Machine speed
Eciency
Working hours per week
14
tricot jersey
120
62
2200 courses per minute
87%
120
Required:
1. Linear y
TE 302: Weft Knitting Production Calculations
1. Calculate the production in yards per hour for the following 1 1 rib fabric. The fabric
has 25 courses per inch in the nal state. The machine rotates at 20 r.p.m., has 36 feeds
and runs for 95% of the time.
TE 302: Weaving Calculations
1. Using the mass-spring model for the picking mechanism, derive the equation of motion for
the shuttle.
2. Calculate the average shuttle velocity and the picking power in horsepower for the following loom:
Loom speed(p) = 200
Fluid Mechanics Problem #1:
The figure below shows a calendar bonding process. If the
web enters the calendar with the same velocity as it leaves
it, calculate the density change.
3 mm
1 mm
Fluid Mechanics Problem #2:
The figure below shows a calendar b
TE 302 Laboratory Experiment No. 9
Title: Nonwovens: Thermal, Spray, and Needle Punched Bonding.
Objectives:
1. To manufacture a 60 g/m2 air laid eece on the Rando-Webber using 15% and
30% low melt polyester ber.
2. To manufacture a 60 g/m2 air laid eece
TE 302 Laboratory Experiment No. 3
Title: Analysis of a Knitted Fabric
Objectives:
To instruct students in the simple analysis of a given fabric sample of unknown
structural particulars and qualities. Detailed analysis of a wide variety of fabrics is the
TE 302 Laboratory Experiment No. 2
Title: Analysis of a Simple Woven Fabric Structure
Objectives:
To instruct students in the simple analysis of a given fabric sample of unknown
structural particulars and qualities. Detailed analysis of a wide variety of
TE 302 Laboratory Experiment No. 1
Title: Introduction to computing at the College of Textiles
Objectives:
1. To better understand the design of a satin/sateen weave
2. To reinforce prociency and uency in Excel/VBA
Problem:
NOTE: This is not a group proje