Kerf
Substrate Check
A practical note on material checks for teams confirming sheet condition before loading the laser bed.
Material checks are often skipped when the queue gets busy. On South African production floors that can mean the wrong grade on the table, a coated sheet cut with the wrong assumptions, or plate thickness entered from memory instead of the actual stock.
Substrate Check focuses on the sheet itself before any nest is loaded. Teams should record the actual grade, measured thickness, surface condition and coating state, then compare that with the job card and stored program. To send that information through, use the contact form and name the plant involved.
Sheet details checked at the bed
- Grade marked against the job card
- Surface photo shows rust, oil or film
- Thickness measured, not taken from memory
- Sheet ID matches stock and paperwork
Material condition affects piercing, edge quality and cutting consistency before the cut starts. Check it alongside the machine settings and the relevant kerf entry.
How Substrate Check applies to sheet metal jobs
Substrate Check is about confirming sheet condition before it reaches the laser bed. Check for rust, oil, bowing, coating issues or surface damage that could affect piercing, edge quality or part consistency.
Start with the stock on hand, not the drawing alone. Inland plants often deal with dust on stored sheets, while coastal sites can see more surface bloom and moisture marks that change pierce behaviour. A mild steel sheet, stainless sheet and coated stock each need a different visual and handling check before they reach the table.
The first inspection should happen at the rack or unpacking point, then again at the laser bed. Look for bowed corners, damaged edges, trapped plastic film, wet patches and mixed sheets in one bundle. Those are small details until a nozzle crash, poor pierce or scrap count exposes them.
What the team records before cutting
The useful output is a short material record tied to the job. That usually includes sheet type, thickness reading, visible defects, coating notes and any adjustment needed before the first pierce. A simple record prevents the next shift from repeating the same mistake with the same stock.
Link Substrate Check with the correct kerf note and the relevant cell configuration before broadening the job scope. Confirm the sheet, the program and the paperwork as one set, then send the details through the contact form with the material grade on the current HSG Laser SA bed.
- Material check matched to actual stock
- First sheet condition captured before loading
- Material notes sent with supporting images
South African material conditions that matter
Plants around Gauteng may see dust, handling marks and mixed stock from busy stores areas, while Durban and Cape Town operations often pay closer attention to moisture exposure and surface oxidation. Imported sheet can arrive with protective film, edge damage or inconsistent labelling, so the bundle should be checked before anyone trusts the pallet tag alone.
At the coast, coated and stainless material may need extra inspection for staining or trapped moisture under film. Inland, fine dust and storage debris can affect sheet seating, sensor readings and cut consistency on thin gauge work. After any power interruption, teams should verify that the correct sheet is still on the bed before restarting the program.
Operated by Astros Marketing (Pty) Ltd from 2 Makro Place, Sunnyrock 1401.
Checks that prevent wrong-sheet cutting
A practical note on material checks for teams confirming sheet condition before loading the laser bed.
Capture the note while the sheet is still in front of the operator. Include the stock description, measured thickness, defect photo and any action taken, such as wiping oil, rejecting a bowed sheet or separating mixed grades. That gives production, stores and maintenance one reference when the same issue appears again.
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