Lecture 17 Cutting Department. Marker making…. Efficiency of marker = (Area of patterns in marker...

Lecture 17Lecture 17

Cutting DepartmentCutting Department

Marker making….Marker making….

Efficiency of marker Efficiency of marker = (Area of patterns in marker plan / Total area of the = (Area of patterns in marker plan / Total area of the

marker plan) X 100 marker plan) X 100

Cutting Losses…Cutting Losses…

End LossEnd Loss Width LossWidth Loss Splice LossSplice Loss Buffer LossBuffer Loss Remanent LossRemanent Loss

Cutting LossesCutting Losses

Objectives…Objectives…

Objective of cutting is to separate Objective of cutting is to separate fabric parts as replicas of the pattern fabric parts as replicas of the pattern pieces in the marker plan. pieces in the marker plan.

Points to be considered…Points to be considered…

Precision of cutPrecision of cut– Accurate cutting according to the markerAccurate cutting according to the marker

Clean edges:Clean edges:– Raw edges of fabric should not be frayedRaw edges of fabric should not be frayed

Un-fused edges:Un-fused edges:– Edges are fused due to the heat generated Edges are fused due to the heat generated

due to the friction of blade and fabricdue to the friction of blade and fabric

Cutting method & Instruments…Cutting method & Instruments…

1.1. ManualManual– Hand shearsHand shears– Straight KnifeStraight Knife– Round KnifeRound Knife– Band KnifeBand Knife– NotchersNotchers– Drills and Shear markersDrills and Shear markers

Manual CuttersManual Cutters

Cutting method & Instruments…Cutting method & Instruments…

2.2. Computer Controlled CuttingComputer Controlled Cutting– Straight KnifeStraight Knife– Die cuttingDie cutting– Laser cuttingLaser cutting– Plasma cuttingPlasma cutting– Water jet cuttingWater jet cutting– Ultrasonic cuttingUltrasonic cutting

Automatic CuttersAutomatic Cutters