Increase your profits and Competitive Advantage March 7, Lee Candy Lean Flow is about how items or people we are dealing with in a process move from the first step to the last. Obviously, the intention in Lean flow is to move the item or product through the process as quick as possible, without any risk to quality and customer satisfaction. In fact, flow is about increasing the throughput of work undertaken in the process, whilst improving quality and customer satisfaction.
Math AnalysisMeasurementsPracticeSpeed Christoph Roser Trouble with Times… The speed of your production system is a key aspect of your manufacturing system, and controlling it is important for the success of your organization.
Unfortunately, there are many different and confusing ways to measure the manufacturing speed. Even a simple question on how to call a speed is often confused, with many practitioners using the same term for different measurements, or different terms for the same measurements.
This post aims to give an overview of what is out there, and what it is good for. Lots of confused Terms There are tons of different terms used by practitioners about the speed of the line: Unfortunately, often different lean practitioners mean different things using the same term, or mean the same thing but use different terms.
This is not good. The line speed is one of the important aspects in improving your system. Yet, exactly at this key point of lean manufacturing, the terminology about line speed is absolutely not standardized.
This has potential for major confusion! What I describe below is what I think makes most sense, but I also often point out how it also may be called by others.
So please, if you have a different idea on how to call things, please let me know!
Many Questions to ask To sort out these different speed measurements there are a few key questions to help you figure out the differences: Does the measure include losses or not?
The ratio between these two times would be the OEE. Do you measure a time per part, or its inverse of parts per time, or only a time?
Depending on the answer you have a unit of time per piece, pieces per time, or only time without any pieces, e. Is it the actual time or the target time?
Do you look at a single process, or do you look at an entire system? Do you need the average, a maximum, a minimum, a median, or a percentile value?
In most cases you probably use the average, or more precisely the arithmetic mean, although the median can also be useful sometimes. However, sometimes there are situations where you are looking for a maximum value, i. Do you measure the average of all parts, or separately for every part type?
Do you mean an absolute or relative time? For the remainder of the article whenever I discuss times I usually mean a duration. Do you measure the average time for a single part or for a batch?
If you bake a batch of pieces in an oven, the time per batch is times the average time per piece. Do you include some additional times on top of the speed? This is common for setting targets for manual work.
The operators sometimes have to go to the bathroom, or need small mini-breaks. As you can easily see, there is a plethora of possible speed measurements out there.
A brief overview is given below for the first four questions: Different Manufacturing Speed Measurement Options Some are more common than others, but it definitely has a lot of potential for confusion. For the sake of simplicity I use discrete parts for my examples below, but you can easily adapt it for continuous production in process industry, e.Flow is a method of production and inventory control that is repetitive through the horizontal dimension of time and synchronized in the vertical dimension of production sequence.
1. The process flow diagram of the production system at Donner. Preparation Stage. Imagine Transfer.
Fabrication. 2. What size orders would you schedule on the CNC drill? Normal costing is used to value manufactured products with the actual materials costs, the actual direct labor costs, and manufacturing overhead based on a predetermined manufacturing overhead rate.
These three costs are referred to as product costs and are used for the cost of . Physiology of Micturation: Summary of the process of micturation, which is also known as urination - as taught for basic courses in anatomy and physiology, incl.
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(Figure 7). Together they monitor the process average as well as process variation. With x-axes that are time based, the chart shows a history of the process.
As per flow chart “one defect per unit” is noted for np chart. Operational Management Case Study Report Donner Company (9- ) 1.
Sketch the normal process flow, i.e., the operations common to most orders. The standard ordering process can be illustrated as follows. 1. Estimate the cost 1. Estimate the cost timberdesignmag.com timberdesignmag.com 4. Wrote the detail 4.