Tag Archives: reduce material waste

10 Ways to Cut Sheet Metal Waste

10 Ways to Cut Material Waste with Nesting Software

10 Ways to Cut Material Waste with Nesting Software

Nothing cuts into cash flow or is a profit drain like wasted raw material.  And nothing is more frustrating than seeing huge piles of scrap go out the door.  It is these real, tangible costs that, with some foresight and creative thinking, can be turned into rewards.

Here are a few tips to start you down the road toward material savings.

1. KNOW YOUR MATERIAL USE RATE

It is surprising in this age of technology how many manufacturers don’t know their material use rate. They cannot easily answer the question, “How much of each sheet of material is used for parts?” or “What percentage of your raw material is scrap?” In some cases they need to grab a pencil and paper and do some quick estimates.  And that’s fine if that’s where you are.  At least it is a start. The best place to start when reigning in your material waste is getting a handle on what kind of scrap rate you currently have. When calculating, be sure to look at a large enough production sample to extrapolate use over six months or a year to get a truer picture of reality.  Remember you can’t change what you can’t measure…at least when it comes to material waste. Read more …

Nesting Efficiency Figures – What Everybody Ought To Know

Measuring Sheet Metal Nesting Material Efficiency

Measuring Sheet Metal Nesting Material Efficiency

Here’s A Quick Way To Understand Sheet Metal Nesting Efficiency Numbers

Why Manufacturers Track Material Efficiency

Manufacturers track their material efficiency for a few reasons. They follow efficiency numbers as a means of keeping an eye on day-to-day costs.  They look at variances in their material efficiency numbers to see if any production changes (part mix, sheet size, trim allotment) have made a difference in efficiency.  Finally, manufacturers frequently look at material efficiency as one basis for evaluating the return on investment when sizing up different sheet metal nesting software or CAM packages.

How to Measure Material Efficiency

We  now turn to the task of measuring or calculating material efficiency.  Read more …

Nesting Software | Weighing Material Efficiency & Throughput

Balancing Nesting Priorities

Balancing Nesting Priorities

 

Balancing Priorities

When nesting, most manufacturers see a clear trade off between material efficiency and throughput.  They feel they must choose one or the other goal.  Sacrifice one “good” for the other.

And depending on the nature of the manufacturing operation, there may be only one, clear, obvious choice.  If you’re cutting expensive material, i.e. stainless steel, it would be common sense to save every last percent of material because waste is expensive and the cost only nominally retrievable. However, if you’re in a quick-turn-around shop where delivery is measured in hours, not days or weeks, you may be willing waste material just to meet the delivery requirements.  If the customer is satisfied with your responsiveness and offers more business or is willing to pay more for the fast turn around, the monetary loss in waste can be overcome.

However, most manufacturers don’t live in such a black-and-white world where there is only one, clear objective.

Read more …