SEMPAT04 Marking out and composite materials

Overview This unit identifies the competencies you need to prepare for and mark out materials and components used in engineering and model making, in accordance with approved procedures. You will need to interpret correctly the information contained in the drawings, instructions and specifications, in order to mark out the materials and components accurately and correctly. You will be required to select the appropriate marking-out equipment to be used, based on the features to be marked out and the accuracy required. You will need to use these instruments to mark out datums, profiles, simple joints, hole positions, assembly positions and cutting lines which will be followed when producing the required components. Materials to be marked out will include , and composites, which may be in sheet form, stock sections, or part-manufactured components or sub- assemblies.

Your responsibilities will require you to comply with organisational policy and procedures for the marking-out activities undertaken, and to report any problems with the marking-out equipment, materials or activities that you cannot personally resolve, or are outside your permitted authority, to the relevant people. You will be expected to work with minimum supervision, taking personal responsibility for your own actions and for the quality and accuracy of the work that you carry out.

Your underpinning knowledge will provide a good understanding of your work, and will provide an informed approach to applying marking-out methods and procedures to engineering woodworking and model making components. Your knowledge will be sufficient to enable you to identify incomplete, conflicting or inadequate information, and to carry out the marking-out activities to the required specification. You will know about the various tools that can be used in the marking-out process and why it is important to mark out accurately and legibly.

You will understand the safety precautions required when working with marking-out mediums, tools and equipment, and will be required to demonstrate safe working practices throughout. You will understand the responsibility you owe to yourself and others in the workplace.

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Performance criteria

You must be able to: P1 work safely at all times, complying with health and safety and other relevant regulations and guidelines P2 obtain and use the correct information for marking out P3 obtain the appropriate marking-out equipment and check that it is in a usable condition P4 prepare suitable datums and marking-out surfaces P5 mark out using appropriate methods P6 check that the marking out complies with the specification P7 deal promptly and effectively with problems within your control and report those that cannot be resolved

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Knowledge and understanding

You need to know and K1 the specific safety precautions to be taken when marking out wood and understand: composite materials, and with the tools and equipment that are used K2 hazards associated with the marking-out activities (marking-out equipment used, lifting and handling sheet material, long lengths of materials, splinters from wood), and how they can be minimised K3 the process to be adopted to obtain the required drawings and job instructions K4 how to extract information from engineering drawings and related specifications (to include symbols and conventions in relation to work undertaken, first and third angle projections) K5 principles of marking out and the type of equipment used K6 the range of operations that the various marking-out equipment is capable of performing K7 how to prepare the materials in readiness for the marking-out activities, in order to enhance clarity, accuracy and safety (visually checking for defects, preparing the materials, removing sharp corners and edges) K8 how to select and establish suitable datums K9 the importance of ensuring that marking out is undertaken from the selected datums, and the possible effects of working from different datums K10 methods of holding and supporting workpieces during the marking-out activities, and equipment that can be used K11 use of marking-out conventions when marking out the workpiece (including datums; cutting guidelines; and rectangular profiles; circular and radial profiles; angles; holes which are linearly positioned, boxed and on pitch circles) K12 the use of geometrical construction methods applied to marking out K13 ways of laying out the marking-out shapes or patterns to maximise the use of materials K14 setting and adjusting tools (such as squares, , marking gauges) K15 the importance of using tools only for the purpose intended; the care that is required when using the equipment and tools; the proper way of storing tools and equipment between operations K16 the need for clear lines and dimensional accuracy in marking out to specification and drawing requirements K17 the things that can go wrong with the marking-out activities, and how these can be avoided K18 standards to be attained and company quality control procedures K19 the extent of your own responsibility and whom you should report to if you have problems that you cannot resolve

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Additional Information Scope/range related to 1. obtain and use appropriate information for the marking-out activities, to performance include three from the following: criteria 1.1 drawings 1.2 specifications You must be able to: 1.3 verbal instructions 1.4 sketches 2. use marking-out methods and techniques, which include one of the following: 2.1 direct marking using instruments 2.2 use of templates 2.3 tracing/transfer methods 3. use a range of marking-out equipment, to include six of the following: 3.1 rules and tapes 3.2 straight edge 3.3 pencils 3.4 dividers, compasses or trammels 3.5 protractors or gauges 3.6 vee blocks 3.7 scribers or knives 3.8 punches 3.9 angle plates 3.10 squares 3.11 marking gauges 4. mark out three of the following: 4.1 frames 4.2 fixtures 4.3 storage units 4.4 transportation units 4.5 cases 4.6 formers 4.7 furniture 4.8 structures 4.9 jigs 4.10 other specific items 5. mark out workpieces, to include seven of the following features: 5.1 datums/centre lines 5.2 contoured profiles 5.3 guidelines 5.4 linear hole positions 5.5 square/rectangular profiles 5.6 radial hole positions 5.7 angles/angular profiles 5.8 joints

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5.9 circles 5.10 assembly positions 6. produce marked-out components which meet all of the following quality and accuracy standards: 6.1 dimensionally accurate to drawing or specification 6.2 has clearly formed lines and profiles 6.3 waste material is clearly identified 6.4 datum faces/points are clearly marked and identified

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Developed by SEMTA

Version number 1

Date approved December 2002

Indicative review December 2014 date

Validity Current

Status Original

Originating SEMTA organisation

Original URN PAT04

Relevant Managers and senior officials; engineering and manufacturing technologies; occupations engineering; functional managers

Suite Engineering woodworking, pattern and model making suite 3 2002

Key words engineering, woodworking, pattern making, model making, marking out, wood, composite, methods, techniques, marking out equipment

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